A wavelength selective modulator

The invention relates to a regulating optical wavelength the device and method, and wavelength of the relatively independent modulation of the wavelength circuit. The optical wavelength of can be transformed to at least one accessing waveguide. And the wavelength groove (10) is transmitted and reflection through the first multiple mode wave guides is provided at least two connecting wave guides. , And the wavelength is transmitted to the induction changeover structure at least one wavelength of selected (2, 4, 6 and 8). Part changeover structure of each wavelength of selected (2, 4, 6, 8) to the relative phase of the wavelength of the control element (C1, C2, D1, D2, E1, E2 F1, and F2) is the two two, further changeover part structure for phase according to the light in the wavelength of a selected type invariable. The optical signal and position to multiple second sound wave guide (20) and accessing wave guides a photodetector light signal any position generated in the water.