Device for simultaneous transmission of data and capacity by optical waveguide
Abstract
FIELD: radio engineering, communication. SUBSTANCE: in this device an optical waveguide connects the base station and the remote station. On the base station laser high power source emits the first laser beam for transferring power and low power laser base station emits the second laser beam for transferring data from the base station to a remote station by optical waveguide. The optical interface introduces laser beams into an optical waveguide for transmission. The first and second laser beams are received on the respective first and second optical receivers of the base station. Likewise, at a remote station, the third laser beam is emitted by a low-power laser source of a remote station for transferring data from a remote station to a base station, and this beam is received on the base station's optical receiver. The wavelengths of the first, second and third laser beams are different from each other. EFFECT: signal transmission capacity growth. 14 cl, 3 dwg

Term
7.1 yearsleft in the term
Expires 18 October 2033.
- Priority and filed
- Granted
- Today
- Expires
46 claims: 34 independent, 12 dependent
- 1Устройство (1) для одновременной передачи данных и мощности по оптическому волноводу (2) между базовой станцией (3) и удаленной станцией (4), причем устройство (1) содержит:
- 2- оптический волновод (2) для соединения базовой станции (3) и удаленной станции (4);
- 3- базовую станцию (3) для передачи и приема данных и для передачи мощности по оптическому волноводу (2), причем базовая станция (3) содержит:
- 4- лазерный источник (5) высокой мощности для испускания первого лазерного луча (6) при первой длине волны, причем первый лазерный луч (6) используется для передачи мощности от базовой станции (3) к удаленной станции (4);
- 5- лазерный источник (7) низкой мощности базовой станции для испускания второго лазерного луча (8) при второй длине волны, причем второй лазерный луч (8) используется для передачи данных от базовой станции (3) к удаленной станции (4);
- 6- оптический приемник (9) базовой станции для приема третьего лазерного луча (10) при третьей длине волны от удаленной станции (4), причем третий лазерный луч (10) используется для передачи данных от удаленной станции (4) к базовой станции (3);
- 7- оптический интерфейс (11) базовой станции для одновременного введения первого (6) и второго (8) лазерных лучей в оптический волновод (2) и для наведения третьего лазерного луча (10) от оптического волновода (2) к оптическому приемнику (9) базовой станции;
- 8- удаленную станцию (4) для приема и передачи данных и для приема мощности по оптическому волноводу (2) от базовой станции (3), причем удаленная станция (4) содержит:
- 9- лазерный источник (12) низкой мощности удаленной станции для генерирования, по меньшей мере, третьего лазерного луча (10) для передачи данных от удаленной станции (4) к базовой станции (3);
- 10- первый оптический приемник (13) удаленной станции для приема первого лазерного луча (6) от базовой станции (3);
- 11- второй оптический приемник (14) базовой станции для приема второго лазерного луча (8) от базовой станции (3);
- 12- оптический интерфейс (15) удаленной станции для одновременного наведения первого лазерного луча (6) на первый оптический приемник (13) удаленной станции, второго лазерного луча (8) на второй оптический приемник (14) базовой станции и для введения третьего лазерного луча (10) в оптический волновод (2);
- 13причем первая, вторая и третья длины волны отличны друг от друга.
- 142. Устройство (1) по п.1, в котором первый оптический приемник (13) удаленной станции содержит фотоэлектрический преобразователь энергии для преобразования мощности, полученной от первого лазерного луча (6), в электрическую энергию.
- 153. Устройство (1) по п.1, в котором оптический приемник (9) базовой станции, первый оптический приемник (13) удаленной станции и второй оптический приемник (14) базовой станции представляют собой фотодиоды.
- 164. Устройство (1) по п.1, в котором лазерный источник (7) низкой мощности базовой станции и/или лазерный источник (12) низкой мощности удаленной станции для генерирования по меньшей мере третьего лазерного луча (10) представляет собой лазер поверхностного излучения с вертикальным резонатором.
- 175. Устройство (1) по любому из пп.1-4, в котором лазерный источник (5) высокой мощности имеет радиатор (16), соединенный с ним для рассеивания тепла, поступающего от лазерного источника (5) высокой мощности.
- 186. Устройство (1) по п.5, в котором лазерный источник (7) низкой мощности базовой станции, оптический приемник (9) базовой станции, оптический интерфейс (11) базовой станции и лазерный источник (5) высокой мощности расположены внутри кожуха (17) базовой станции.
- 197. Устройство (1) по п.5, в котором лазерный источник (7) низкой мощности базовой станции, оптический интерфейс (11) базовой станции и оптический приемник (9) базовой станции вместе образуют триплексный модуль (18) базовой станции, установленный внутри кожуха (17) базовой станции, а лазерный источник (5) высокой мощности соединен с триплексным модулем (18) базовой станции через первое неразъемное соединение с волноводом (19) для подачи первого лазерного луча (6) в триплексный модуль (18) базовой станции.
- 208. Устройство (1) по п.7, в котором лазерный источник (12) низкой мощности удаленной станции, оптический интерфейс (15) удаленной станции, первый оптический приемник (13) удаленной станции и второй оптический приемник (14) базовой станции расположены внутри кожуха (20) удаленной станции.
- 219. Устройство (1) по п.8, в котором лазерный источник (12) низкой мощности удаленной станции, оптический интерфейс (15) удаленной станции и второй оптический приемник (14) базовой станции вместе образуют триплексный модуль (21) удаленной станции, установленной внутри кожуха (20) удаленной станции, а первый оптический приемник (13) удаленной станции соединен с триплексным модулем (21) удаленной станции через второе неразъемное соединение с волноводом (23) для подачи третьего лазерного луча (10) в триплексный модуль (21) удаленной станции.
- 2210. Устройство (1) по п.9, в котором первая длина волны составляет 808 или 940 нм, вторая длина волны составляет 1310 нм, а третья длина волны составляет 850 нм.
- 2311. Устройство (1) по любому из пп.1-4, в котором оптический интерфейс (11) базовой станции содержит оптическую схему устройств (24) базовой станции, а оптический интерфейс (15) удаленной станции содержит оптическую схему устройств (25) удаленной станции, в которой каждое устройство (26, 27, 28, 29) является проницаемым для селективной длины волны, причем
- 24- оптическая схема устройств (24) базовой станции содержит:
- 25- первое устройство (26), проницаемое для первого лазерного луча (6) и отражающее третий лазерный луч (10), причем первое устройство (26) установлено таким образом, чтобы первый лазерный луч (6) был введен в оптический волновод (2), а третий лазерный луч (10), поступающий из оптического волновода (2), был отражен по направлению к оптическому приемнику (9) базовой станции;
- 26- второе устройство (27), проницаемое для первого (6) и третьего (10) лазерного луча и отражающее второй лазерный луч (8), причем второе устройство (27) установлено таким образом, чтобы первый лазерный луч (6) был введен в оптический волновод (2), третий лазерный луч (10) проходил через второе устройство (27) по направлению к первому устройству (26), а второй лазерный луч (8) был отражен и введен в оптический волновод (2);и
- 27- оптическая схема устройств (25) удаленной станции содержит:
- 28- третье устройство (28), проницаемое для первого (6) и третьего (10) лазерного луча и отражающее второй лазерный луч (8), причем третье устройство (28) установлено таким образом, чтобы первый лазерный луч (6) после прохождения через третье устройство (28) был направлен к четвертому устройству (29), третий лазерный луч (10) был введен в оптический волновод (2), и второй лазерный луч (8), поступающий из оптического волновода (2), был отражен по направлению ко второму оптическому приемнику базовой станции (9);
- 29- четвертое устройство (29), проницаемое для первого лазерного луча и отражающее третий лазерный луч (10), причем четвертое устройство (29) установлено таким образом, чтобы первый лазерный луч (6) был направлен на первый оптический приемник (13) удаленной станции, а третий лазерный луч (10) был отражен по направлению к третьему устройству (28).
- 3012. Устройство (1) по п.11, в котором каждое из устройств (26, 27, 28, 29) представляет собой зеркало, фильтр или линзу.
- 3113. Способ (100) для одновременной передачи данных и мощности по оптическому волноводу (2), соединяющему базовую станцию (3) и удаленную станцию (4), причем способ (100) содержит этапы:
- 32- генерирования (101) первого лазерного луча (6), имеющего первую длину волны от лазерного источника (5) высокой мощности на базовой станции (3);
- 33- генерирования (102) второго лазерного луча (8), имеющего вторую длину волны от лазерного источника (7) низкой мощности базовой станции на базовой станции (3);
- 34- введения (103) первого (6) и второго (8) лазерных лучей в оптический волновод (2);
- 35- передачи мощности (104) по первому лазерному лучу (6) от базовой станции (3) к удаленной станции (4) через оптический волновод (2);
- 36- передачи данных (105) по второму лазерному лучу (8) от базовой станции (3) к удаленной станции (4) через оптический волновод (2);
- 37- наведения (106) первого лазерного луча (6) на первый оптический приемник (13) удаленной станции и наведения второго лазерного луча (8) на второй оптический приемник (14) базовой станции;
- 38- приема мощности (107) от базовой станции (3) на первом оптическом приемнике (13) удаленной станции;
- 39- приема данных (108) от базовой станции (3) на втором оптическом приемнике (14) базовой станции;
- 40- генерирования (109) третьего лазерного луча (10), имеющего третью длину волны, от лазерного источника (12) низкой мощности удаленной станции на удаленной станции (4);
- 41- введения (110) третьего лазерного луча (10) в оптический волновод (2);
- 42- передачи данных (111) по третьему лазерному лучу (10) от удаленной станции (4) к базовой станции (3) через оптический волновод (2);
- 43- наведения (112) третьего лазерного луча (10) от оптического волновода (2) на оптический приемник (9) базовой станции;
- 44- приема данных (113) от удаленной станции (4) на оптическом приемнике (9) базовой станции;
- 45причем первая, вторая и третья длины волны отличны друг от друга.
- 4614. Способ (100) по п.13, в котором этап передачи мощности (104) по первому лазерному лучу (6) от базовой станции (3) к удаленной станции (4) через оптический волновод (2), этап передачи данных (105) по второму лазерному лучу (8) от базовой станции (3) к удаленной станции (4) через оптический волновод (2) и этап передачи данных (111) по третьему лазерному лучу (10) от удаленной станции (4) к базовой станции (3) через оптический волновод (2) осуществляют одновременно.
Independent claims46
97 paragraphs in 1 section, as filed
The present invention relates to optical fiber communication and power transmission, more particularly to a device for simultaneous full-duplex data transmission and transmission of power over an optical waveguide between a base station and a remote station.
The exchange of data on fiber optic cables is very well known, and is currently being implemented for a long time. Optical power transmission through fiber optics has by now been known for many years in high voltage direct current (HVDC) technology and is gaining in popularity and popularity due to the many advantages it offers. The electrical power provided through the fiber has the advantage of providing complete immunity to electrical noise and provides complete isolation of the source and system.
Simultaneous communication of data and power over fiber optic cables requires a huge number of cables, i.e. a data cable, a data cable, and a separate cable for power transmission. In these systems, duplex modules are used for bi-directional data exchange through a single optical waveguide. These modules contain a transmitting diode and a receiving photodiode, and each of them usually operates at different wavelengths. Power is supplied to the electronic modules via an additional optical waveguide. For this, light is introduced into the optical waveguide using a high-power laser. The light is then converted back to electrical energy in the electronic module using a photoelectric converter. Such modules are used, for example, to measure current and voltage at a potential of high voltage. In the same way,
In addition, duplex modules are also suitable for medical technology applications that are equipped with two lasers of different power or wavelength and which are also introduced into a single optical waveguide.
The advantages of using fiber optic cables are widely known. The use of fiber optic cables for transmission results in low transmission losses and no transient interference and extends the range of operating frequencies suitable for use. They provide signal safety, electrical isolation and immunity to interference. Moreover, fiber-optic cables are small in size and weight, and raw materials are available in large quantities. These are just some of the advantages of using fiber optic cables for data and power transmission.
However, when using duplex modules, as mentioned earlier for data transmission, a separate optical waveguide is used in addition to the data for power transmission. This increases the cost of transmission, since an additional cable for power transmission requires an excess of raw materials. Also costs increase installation.
US Pat. No. 7,844,154 discloses a special cable in which data and power transmission can occur through a single optical waveguide. This cable eliminates the need for a separate cable to transmit power in the system for data transmission. This patent discloses an optical fiber adapted to carry optical power to power an electrical device, and also adapted (not necessarily) to transfer optical data for signal processing. An optical fiber capable of carrying both optical data and optical power includes a central region of a data waveguide that carries light data and an annular waveguide region of power concentrically surrounding the waveguide region of the data and adapted to carry relatively large amounts of optical power.
However, the invention disclosed above requires a special structural change to be made for a conventional fiber optic cable, which includes the creation of various coaxial channels for transmitting power and data separately through the same cable.
Therefore, there is a need for a device that transmits power and data simultaneously over a single optical waveguide, without the need for any structural changes to the existing optical waveguide.
It is an object of the present invention to provide a cost-effective device for simultaneous data transmission and power over a single optical waveguide without changing the structure of an existing optical waveguide.
The task of combining full-duplex data transmission with simultaneous transmission of power over the same optical waveguide is achieved by transmitting data at one wavelength, receiving data at another wavelength and transmitting power over a third distinct wavelength by using triplex modules.
The proposed solution overcomes the need to lay additional fiber cables for power transmission or in introducing structural changes into conventional optical waveguides for power transmission. Since the transmission of data and power supplied to electronic modules by laser light occurs through a single optical waveguide using triplex modules, this leads to the saving of the raw materials from which the optical waveguide is made and this also results in saving the operating costs required for stacking optical waveguides, since only a single waveguide can provide the desired result.
The existing method for transmitting data over the laser channel, especially uplink transmission from the base station to the remote station, is prone to errors, because data transmission also has to be done simultaneously with the power supply of the module - in other words, the power supply of the module is achieved through data transmission. In the case of the triplex module system, as disclosed in the present invention, the use of data transmission and power supply by laser light occurs completely independently of each other. As a result, you can expect greater reliability of transmission and installation.
The invention discloses an apparatus and method for simultaneous full-duplex data transmission and power over a single optical waveguide using triplex modules. In this device, an optical waveguide connects the base station and the remote station. At a base station, a high power laser source or high power laser source emits a first laser beam for power transfer, and a low power laser source, such as a low power laser diode, emits a second laser beam to transfer data from the base station to the remote station via an optical waveguide. The optical interface introduces laser beams into an optical waveguide for transmission. The first and second laser beams are received at respective first and second optical receivers of the base station. Similarly, at a remote station, a third laser beam is emitted by a low power laser source, such as a low power laser diode, for transferring data from a remote station to a base station, and this beam is received at an optical receiver of the base station. The wavelengths of the first, second and third laser beams are different from each other.
The invention discloses an apparatus for simultaneously transmitting data and power over an optical waveguide between a base station and a remote station. Data transmission is a full-duplex two-channel transmission. The device comprises a base station, a remote station and an optical waveguide that connects the base station to a remote station. The base station is designed to transmit and receive data and transmit power over an optical waveguide. The base station includes a high power laser source for emitting a first laser beam at a first wavelength, a low power laser source such as a low power laser diode to emit a second laser beam at a second wavelength, and an optical base station receiver for receiving a third laser beam at the third wavelength from a remote station. The first laser beam is used to transmit power from the base station to the remote station, a second laser beam is used to transmit data from the base station to the remote station, and a third laser beam is used to transfer data from the remote station to the base station. The apparatus further comprises an optical interface of the base station for simultaneously introducing the first and second laser beams into the optical waveguide and for directing the third laser beam from the optical waveguide to the optical receiver of the base station.
The remote station is designed to receive and transmit data and to receive power over the optical waveguide from the base station. The remote station also comprises a low power laser source such as a low power laser diode to generate at least a third laser beam for transmitting data from the remote station to the base station, the first optical receiver of the base station for receiving the first laser beam from the base station , the second optical receiver of the base station is for receiving the second laser beam from the base station. The device further comprises an optical interface of the remote station for simultaneously directing the first laser beam to the first optical receiver of the base station, the second laser beam to the second optical receiver of the base station,
In the device, the first, second and third wavelengths of the first, second and third laser beams, respectively, are different from each other. Devices for transmitting power from a base station to a remote station, i. E. A high power laser source acting as a power transmitter and a first optical receiver of the base station operate at the first wavelength. Devices for transferring data from a base station to a remote station, i.e. A low power laser diode at the base station acting as an upstream data transmitter and a second optical receiver of the base station operate at a second wavelength. Devices for downlink data transmission from a remote station to a base station, i. E. a low-power laser diode at a remote station acting as a downstream data transmitter,
The properties of laser beams, such as a narrow spectral width, high intensity, high level of directivity and coherence make it the best choice for these applications.
An example of an optical waveguide used in a device is a multimodal fiber cable of 62.5 / 125 or 105/125 μm.
In another embodiment, the first optical receiver of the base station comprises a photovoltaic power converter (PPC) for converting the power received from the first laser beam into electrical energy. The power is transmitted in the form of light through the first laser beam along the optical waveguide, and the power is received at the remote station. PPC takes power from the laser beam and converts light energy into electrical energy. In the example, PPC is PPC-6E, which is a photoelectric energy converter, optimized for maximum lighting efficiency in the range of 790-850 nm. It is designed to convert light 790-850 nm into electrical power up to 6V, with an output power of several mW to 0.5W. The PPC-6E is supplied with ST or FC connectors. It provides complete electrical insulation. The PPC-6E is optimized for a light source of 810 nm.
The power transmitted through the optical waveguide is fed to the electronic module at a high voltage at the remote station. Examples of electronic modules are measuring modules, modules of start-up arresters, etc. Such modules are used, for example, to measure current and voltage at a potential of high voltage. In the same way, in addition to the measuring modules, the modules of the starting arresters are used at the potential of high voltage, which is required to ignite the current paths for the arc or arc gaps.
Thus, by means of an additional laser diode of high power or a photoelectric element, respectively, power is supplied to electronic modules, kits, panels, etc., at a high voltage with a single optical waveguide or, in other words, a light waveguide, an optical fiber and etc.
In another embodiment of the device, the optical receiver of the base station, the first optical receiver of the base station, and the second optical receiver of the base station are photodiodes. Photodiodes are semiconductor photodetectors capable of converting light originating from the first, second and third laser beams into a current or into a voltage. These photodiodes can sense the luminescent power of the laser beams incident on them and convert this optical power into the corresponding electric current. These photodiodes are used solely because of their small size, suitable material, high sensitivity and fast response time.
In a further embodiment, low power laser sources, i. E. a low power laser source at a base station and / or a low power laser source at a remote station are laser diodes. In a further embodiment, these laser diodes are diodes such as a vertical cavity surface emitting laser (VCSEL). VCSEL is a semiconductor laser diode in which the emission of a laser beam occurs perpendicular to the upper surface, in contrast to standard semiconductor lasers with edge radiation. Using VCSEL can make the design of the device easier by providing a laser beam in a specific direction, if desired.
In yet another embodiment, the high power laser source has a radiator connected thereto to dissipate heat emanating from the high power laser source. A high-power laser source emits huge amounts of heat, since it generates a power of about 1.5 W or more. To dissipate this excess heat, radiators are required. The radiator maintains the base station temperature at a low level. Laser sources of low power do not radiate so much heat and, therefore, do not necessarily require any radiators.
However, the use of a radiator is not necessary, since the power dissipation depends on the required laser power and duty cycle. If cooling is required, for example in the case of high power or high duty cycle, any type of cooling can be used, namely passive cooling, for example the use of radiators, or active cooling, for example the use of cooling fans.
In a further embodiment, the low power laser source of the base station, the base station optical receiver, the base station optical interface and the high power laser source are located inside the base station casing. This casing together forms a triplex module of the base station. This "combined version" of the device gives the device a compact structure and makes it more portable.
In another embodiment, the low power laser source of the base station, the base station optical interface and the base station optical receiver together form a triplex base station module installed within the base station casing. A high power laser source is connected to a triplex base station module via a first non-detachable connection, with a waveguide for feeding the first laser beam to the triplex base station module. This one-piece connection with the waveguide can be made from a piece of optical fiber. This "version of the fiber segment" configuration of connecting a high-power laser source as an external attachment to a triplex base station module has the advantage. A high power laser source emits a lot of heat, since it generates a power of about 1.5 W or more. To dissipate this heat it is necessary to install a radiator. A radiator can occupy a considerable space. The presence of a high-power laser source as a separate module connected to the triplex base station module via an integral connection with the waveguide will reduce the size of the base station's triplex module, since the high-power laser module, along with the radiator, is located outside the triplex module and forms a separate external unit. This makes the device more flexible, so it can easily fit into larger systems. connected to the triplex base station module through an integral connection with the waveguide, will reduce the size of the triplex module of the base station, since the high power laser module, along with the radiator, is located outside the triplex module and forms a separate external unit. This makes the device more flexible, so it can easily fit into larger systems. connected to the triplex base station module through an integral connection with the waveguide, will reduce the size of the triplex module of the base station, since the high power laser module, along with the radiator, is located outside the triplex module and forms a separate external unit. This makes the device more flexible, so it can easily fit into larger systems.
In another embodiment, the remote station's low power laser source, the remote station's optical interface, the first optical receiver of the remote station and the second optical receiver of the base station are located inside the casing of the remote station. This casing together forms a triplex module of the remote station. This combined version gives the device a compact structure and makes it more portable.
In yet another embodiment, the remote station's low power laser source, the remote station optical interface and the second optical base station receiver together form a triplex remote station module installed inside the remote station casing. The first optical receiver of the base station is connected to the triplex module of the remote station via a second one-way connection, with a waveguide for receiving a third laser beam emanating from the triplex module of the remote station. The advantage of having an optical receiver of the base station outside the triplex module of the remote station is that it gives flexibility to the device, and the second non-detachable connection to the waveguide provides connectivity to the triplex module of the remote station, without compromising its functionality.
In an embodiment of the invention, the first wavelength is 808 or 940 nm, the second wavelength is 1310 nm, and the third wavelength is 850 nm.
In yet another embodiment, the optical interface of the base station comprises an optical scheme of the base station devices, and the optical interface of the remote station comprises an optical scheme of the remote device station. Each of these devices is permeable to a selective wavelength. In other words, each device will allow only a certain wavelength or a range of wavelengths of light to pass through it and will either reflect or refract the remaining wavelengths of light. Consequently, laser beams having different wavelengths falling on these devices will be processed by the devices in different ways, based on the permeability characteristics of each device.
The optical scheme of the base station devices comprises a first device permeable to the first laser beam and reflecting the third laser beam. The first device is installed in such a way that the first laser beam enters the optical waveguide and the third laser beam emerging from the optical waveguide is reflected toward the optical receiver of the base station. The optical schematic of the base station devices further comprises a second device permeable to the first and third laser beam and reflecting the second laser beam, the second device being arranged so that the first laser beam enters the optical waveguide, the third laser beam passes through the second device towards the first laser beam device, and the second laser beam was reflected and entered into the optical waveguide.
The optical scheme of the remote station devices comprises a third device permeable to the first and third laser beam and reflecting the second laser beam. The third device is installed so that the first laser beam after passing through the third device is directed to the fourth device, the third laser beam being introduced into the optical waveguide, and the second laser beam emerging from the optical waveguide is reflected toward the second optical receiver of the base station. The fourth device is permeable to the first laser beam and reflects the third laser beam. The fourth device is installed so that the first laser beam is directed to the first optical receiver of the remote station, and the third laser beam is reflected towards the third device.
This arrangement of the devices ensures that the power is transmitted through the optical waveguide at a different wavelength, without interfering with data transmission that occurs at a different wavelength along the same optical waveguide. It should also be noted that the transfer of data from the base station to the remote station, i.e. uplink transmission, and data transmission from the remote station to the base station, i. e. downward transmission occurs at two different wavelengths.
In another embodiment, each of the devices from the base station, as well as from the remote station optical device, is a mirror, filter, or lens. These mirrors or lenses act as filters for a specific wavelength. They are specially designed to ensure the passage of only selected wavelengths of light and blocking other wavelengths of light. This ensures that the laser beams are directed to and from the optical waveguide and that they precisely fall on the respective receivers at the base station and the remote station.
In an embodiment, the type of ball lenses is used in combination with filters appropriate to the wavelength used to focus the beams at the receivers through the fiber connector. The choice of lens, mirror or filter may depend on the available space inside the casing for triplex modules.
The invention also discloses an embodiment of a method for simultaneously transmitting data and power over an optical waveguide connecting a base station and a remote station. The method comprises the steps of generating a first laser beam having a first wavelength from a high power laser source at a base station, generating a second laser beam having a second wavelength from a low power laser source at a base station, introducing a first and second laser beam into an optical waveguide . Further, the method comprises the steps of transmitting power over a first laser beam from a base station to a remote station via an optical waveguide and transmitting data on a second laser beam from a base station to a remote station via an optical waveguide.
The first laser beam carrying the power is then directed to the first optical receiver of the base station, and the second laser beam carrying the data is directed to the second optical receiver of the base station. The transmitted power transferred by the first laser beam is received from the base station on the first optical receiver of the base station, and the transmitted data transferred by the second laser beam is received from the base station on the second optical receiver of the base station.
The method further comprises the steps of generating a third laser beam having a third wavelength from a low power laser source at a remote station, inserting a third laser beam into an optical waveguide, and transmitting data on a third laser beam from a remote station to a base station via an optical waveguide. Then, the third laser beam is guided from the optical waveguide to the optical receiver of the base station, where the data from the remote station is received at the optical receiver of the base station.
In this method, the first, second and third wavelengths are different from each other. This prevents crosstalk or the mutual influence between data transmission and power transmission.
In an embodiment of the method, a step of transmitting power over a first laser beam from a base station to a remote station via an optical waveguide, a step of transmitting data on a second laser beam from a base station to a remote station via an optical waveguide, and a data transmission step of a third laser beam from a remote station to a base station stations through an optical waveguide occur simultaneously. This leads to a full-duplex exchange of data that occurs simultaneously with the transfer of power, both of which occur independently of each other, without any mutual influences.
Additionally, the device for simultaneous data transmission and power over the optical waveguide may comprise several or all of the features that have been mentioned above for various embodiments of the device according to the invention.
The foregoing and other features of the invention will now be described with reference to the accompanying drawings of the present invention. The illustrated embodiments are intended to illustrate, and not to limit, the invention. The drawings contain the following Figures, in which similar numbers refer to similar parts throughout the description and drawings.
FIG. 1 is a schematic diagram of an apparatus for simultaneously transmitting data and power over an optical waveguide between a base station and a remote station.
FIG. 2 is a schematic diagram of another embodiment of an apparatus where a high power laser source and a first optical receiver of a base station are connected to a base station and a remote station, respectively, through permanent connections to the waveguides.
FIG. 3 is a block diagram showing a method for simultaneously transmitting data and power over an optical waveguide connecting a base station and a remote station.
Various embodiments are described with reference to the drawings in which like reference numerals are used to refer to similar elements throughout the drawings. In the following description, for purposes of explanation, numerous specific details are set forth to provide a complete understanding of one or more embodiments. It may be obvious that such embodiments can be implemented without these specific details.
FIG. 1 is a schematic diagram of an apparatus 1 for simultaneous data transmission and power over an optical waveguide 2 between a base station 3 and a remote station 4. The base station 3 mainly comprises a high power laser source 5, a low power laser source 7 of a base station, an optical device circuit 24 a base station comprising a first device 26 and a second device 27, and an optical receiver 9 of a base station. The remote station 4 basically comprises a low power laser source 12 of the remote station, an optical scheme of the remote station devices 25, comprising a third device 28 and a fourth device 29, a first optical receiver of the base station and a second optical receiver of the base station.
A high power laser source 5 at the base station 3 generates a first laser beam 6 having a certain wavelength. This first laser beam 6 passes through the first device 26 and the second device 27, and then is introduced into the optical waveguide 2 via the optical interface 11 of the base station. This first laser beam 6 is then transmitted along the optical waveguide 2 and is directed to the first 13 optical base station receiver by the remote station optical interface 15 after passing through the third 28 and fourth 29 device. The third 28 and fourth 29 devices are part of the optical scheme of the remote station devices 25.
An example of an optical base station receiver 13 is the PPC-6E, which is a photo voltaic power converter (PPC). It operates at wavelengths of 808 or 940 nm. The PPC converts the energy received from the first laser beam 6 into electrical energy. When using PPC-6E, an energy of approximately 6 V and up to 500 mW can be obtained. This electrical energy can be used for various applications, as mentioned earlier.
A low power laser source 7 of the base station at the base station 3 generates a second laser beam 8 at a second wavelength. This second laser beam 8 is reflected from the second device 27, and is then introduced into the optical waveguide 2 by the optical interface 11 of the base station. This second laser beam 8 is then transmitted along the optical waveguide 2 and is directed to the second optical receiver of the base station by the optical interface 15 of the remote station after reflection from the third device 28. An exemplary operating wavelength of a low power laser source 7 of a base station is a wavelength of 1310 nm.
Some of the features of the model laser low power source 7 of the base station are that it is a non-cooled multi-quantum well (MQW) laser diode that operates at temperatures between -40 ° C and +85 ° C ° C at 5 mW of constant wave, and thus it can operate at high temperatures without active cooling, and it is a hermetically protected active component that has a built-in InGaAs photodiode monitor compatible with Telcordia (Bellcore) GR- 468-CORE and with the TO-18 package, which has a flat-screen cover or a globe lens cover. An example of the second 14 optical receiver of the base station is a high-speed InGaAs detector operating at a wavelength of 1310 nm. This detector has a high response,
The low power laser source 12 of the remote station at the remote station 4 generates a third laser beam 10 having a third wavelength. This third laser beam 10 is reflected from the fourth device 29, it passes through the third device 28, and then it is introduced into the optical waveguide 2 via the optical interface 15 of the remote station. This third laser beam 10 is then transmitted along the optical waveguide 2 and directed to the optical base station receiver 9 via the base station optical interface 11, after passing through the second 27 and reflections from the first device 26. The approximate working wavelength of the low-power laser source 12 of the remote station is 850 nm.
An example of the second 14 optical receiver of the base station is a photodiode operating at 850 nm, such as a GaAs-based photodetector with a low-noise transimpedance amplifier. This photodiode, which has a large active zone of 250 μm, a high operating frequency range or a wide dynamic range, is hermetically sealed in the TO-46 envelope, operates with a single 3.3-5V power supply and provides a differential output.
An example of a low-power laser source 12 of a remote station at a remote station 4 operating at 850 nm is a single-mode emitter of the vertical cavity surface emitting laser (VCSEL) type. Some of the features of the VCSEL emitter are that it operates in a single-mode and unipolar mode, it provides an ideal circular Gaussian beam, has a stable polarization, has a flat TO-46 screen cover and has a built-in electrostatic discharge (ESD) .
Optical receivers 9, 14 and transmitters 7, 12 for data transmission operate at different wavelengths. Within the entire range of available optical components, several basic combinations are possible. As a rule, all wavelengths are possible, for example, from 650 nm to 1550 nm. This is also applicable for a high power laser source 5 and a first 13 optical base station receiver that are suitable for different wavelengths.
FIG. 1 illustrates the integrated version of the device. The integrated version has a base station casing 17 that includes a low power laser source 7 of the base station, an optical base station receiver 9, a base station optical interface 11, and a high power laser source 5. This base station casing 17 can also form a base station triplex module 18. A radiator 16 connected to a high-power laser source 5 is installed to dissipate heat from the high-power laser source 5. The radiator 16 is located inside the base station's triplex module 18 or the base station casing 17.
In this version of the base station's triplex module 18, the corresponding remote station 4 also has a complex structure in which the remote station's low power laser 12, the remote station optical interface 15, the base station's 13 optical receiver and the second base station optical receiver 14 are located inside the casing 20 remote station. This casing of the remote station 20 can also form a triplex unit 21 of the remote station.
Therefore, FIG. 1 illustrates an embodiment where, in general, the high power laser source 5 and especially the first 13 optical base station receiver or photoelectric power converter (PPC) form, respectively, a portion of the triplex module of the base station 18 and the triplex unit 21 of the remote station.
Compared to the duplex modules according to the prior art, this complex version of the base station 18 triplex module design will require a larger casing for the base station casing 17, since the power dissipation of the high power laser source 5 will result in the heating of the base station's triplex unit 18, radiator construction 16.
Unlike the base station's triplex module 18, the remote station's triplex unit 21 has only a low power dissipation, since the first 13 optical receiver of the base station or PPC provides only a small electrical energy, for example, about 100 mW. This will not require any heat sink, so the triplex module 21 of the remote station and its casing 20 will have to be expanded, as compared to the duplex module according to the prior art, which is sufficient to accommodate an additional first optical base station receiver or PPC.
Let us turn now to FIG. 2, which illustrates another embodiment of an apparatus for simultaneous data transmission and power over an optical waveguide 2 between a base station 3 and a remote station 4, where a high power laser source 5 and a first 13 optical base station receiver are connected respectively to a base station and a remote station through all-in-one connections to the waveguides 19, 23. The high power laser source 5 and the first 13 optical receiver of the base station are made as separate blocks.
At the base station 3, the low power laser source 7 of the base station, the base station optical interface 11, and the base station optical receiver 9 together form a base station triplex module 18 installed within the base station casing 17. This base station triplex module 18 is connected to a high-power laser source 5 through a first integral connection with the waveguide 19. This waveguide 19 can be a fiber section, i. E. single, short optical fiber. This waveguide 19 or fiber flexible conductor supplies the first laser beam 6 from the high power laser source 5 to the base station triplex module 18.
Likewise, for a remote station, the low power laser source 12 of the remote station, the remote station optical interface 15 and the second optical base station receiver 14 together form a remote station triplex unit 21 installed within the remote station casing 20. This triplex unit 21 of the remote station is connected to the first 13 optical receiver of the base station via a second one-way connection with the waveguide 23. This waveguide 23 can be an optical fiber section, i. single, short optical fiber. This waveguide 23 or fiber flexible conductor supplies the first laser beam 6 from the remote station triplex unit 21 to the first 13 optical base station receiver.
This mechanical design for the manufacture of a high-power laser source 5 and a first 13 optical base station receiver in the form of separate units and their connection, respectively, with the base station's triplex module 18 and the triplex module 21 of the remote station through the fiber segments can be more easily realized than The integrated version, illustrated in FIG. 1. The base station casing 17 and the casing of the remote station 20 will be more compact, compared to the integrated version of FIG. 1, since the base station's triplex module 18 according to the integrated version becomes more voluminous, due to the size of the radiator 16 connected to the high-power laser source 5.
You can also imagine using a mixed construction. For example, the "version of the fiber segment" of FIG. 2 for base station 3 and "complex version" of FIG. 1 for remote station 4, or vice versa.
Let us turn now to FIG. 3, there is illustrated a block diagram showing a method 100 for simultaneous data transmission and power over an optical waveguide 2 connecting the base station 3 and the remote station 4. The flowchart shows a step 101 for generating a first laser beam 6 having a first wavelength from high power laser source 5 at the base station 3, a step 102 for generating a second laser beam 8 having a second wavelength coming from the low power laser source 7 of the base station at the base station 3, the first laser beam 6 and the second 8 laser beams into the optical waveguide 2, the power transmission step 104 along the first laser beam 6 from the base station 3 to the remote station 4 through the optical waveguide 2, a data transmission step 105 along the second laser beam 8 from the base station 3 to the remote station 4 via the optical waveguide 2, a step 106 of directing the first laser beam 6 to the first 13 optical receiver of the base station and directing the second laser beam 8 to the second optical base station receiver 14, a power reception step 107 from the base station 3 on the first optical base station 13, a data reception step 108 from the base station 3 at the second base station optical receiver 14, a third laser beam generating section 10 having a third the wavelength of the low power laser source 12 of the remote station located at the remote station 4, the step 110 of introducing the third laser beam 10 into the optical waveguide 2,
While the invention has been described in connection with specific embodiments, the present description is not to be construed in a restrictive sense. Various modifications of the disclosed embodiments, as well as alternative embodiments of the invention, will become apparent to those skilled in the art upon reference to the description of the invention. Therefore, it is believed that such modifications can be made without departing from the embodiments of the present invention that are set.
LIST OF REFERENCE SYMBOLS
1 is a system,
2 - an optical waveguide,
3 - base station,
4 - remote station,
5 - high power laser source,
6 is a first laser beam,
7 is a low power laser source of a base station,
8 is a second laser beam,
9 is an optical receiver of a base station,
10 is a third laser beam,
11 - optical interface of the base station,
12 is a low-power laser source of a remote station,
13 shows a first optical receiver of a base station,
14 is a second optical receiver of a base station,
15 - the optical interface of the remote station,
16 - radiator,
17 shows the casing of the base station,
18 is a triplex base station module,
19 - the first non-detachable connection with the waveguide,
20 - the casing of the remote station,
21 is a triplex module of a remote station,
23 is a second integral connection with the waveguide,
24 is an optical diagram of base station devices,
25 - the optical scheme of devices of the remote station,
26 is a first device,
27 is a second device,
28 is a third device,
29 - the fourth device.
4 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4
Every citation, both ways
| Document | Relation | Office | Cited during |
|---|---|---|---|
| RU118142U1 | Cites | Russian Federation | Search report |
| US2002021872A1 | Cites | United States of America | Search report |
| US5796890A | Cites | United States of America | Search report |
| US7844154B2 | Cites | United States of America | Search report |
| US7941022B1 | Cites | United States of America | Search report |
| US2002021872A1 | Cites | United States of America | – |
10 members in 6 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 2013071847 | European Patent Office (EPO) | W | |
| 2013071847 | European Patent Office (EPO) | W | |
| EP2013071847 | – | – | – |
| WO2013EP71847 | – | – | – |
Members10
| Document | Office | Kind | |
|---|---|---|---|
| WO2015055250A1 | World Intellectual Property Organization (WIPO) | A1 | |
| KR20160058868A | Republic of Korea | A | |
| CN105637787A | China | A | |
| EP3042460A1 | European Patent Office (EPO) | A1 | |
| US2016269114A1 | United States of America | A1 | |
| US9755745B2 | United States of America | B2 | |
| RU2016118976A | Russian Federation | A | |
| RU2642829C2This record | Russian Federation | C2 | |
| KR101880070B1 | Republic of Korea | B1 | |
| CN105637787B | China | B |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Official registration of the transfer of exclusive rightPC41 | PC41 |
Numbers
- Publication
- 0002642829
- Publication, DOCDB
- 2642829
- Publication, EPODOC
- RU2642829
- Application
- 2016118976
- Application, DOCDB
- 2016118976
- Application, EPODOC
- RU20160118976
Titles2
- Russian
- УСТРОЙСТВО ДЛЯ ОДНОВРЕМЕННОЙ ПЕРЕДАЧИ ДАННЫХ И МОЩНОСТИ ПО ОПТИЧЕСКОМУ ВОЛНОВОДУ
- English
- DEVICE FOR SIMULTANEOUS TRANSMISSION OF DATA AND CAPACITY BY OPTICAL WAVEGUIDE
Classification
- CPC, 8
- G02B6/4296
- H04B10/807
- H04B10/25891
- H04B10/2504
- H04J14/0279
- H04B10/503
- H04B10/66
- H04L5/14
- IPC, 1
- H04B10 80