Tuneable add/drop multiplexer

The device capable of the upper and lower. The peeling plug which comprises at least one N×N the MMI waveguide (10) N≥3, at least AN Michaelson wave (31, 32, 33 and 34); each Michaelson waveguide (31, 32, 33 and 34) at least Prague grating (62, 64 and 66) and at least a N-1 Michaelson waveguide (31, 32, 33 and 34) at least one phase control unit in each (51, 53, 55 and 57). The Prague grating is Michaelson waveguide (31, 32, 33 and 34) comprises to the control unit (51, 53, 55 and 57) and a (62, 64 and 66) and is connected at least MMI waveguide (10). The Michaelson waveguide (31, 32, 33 and 34) can be provided with a broadband supporting part (70). An and multiplex is a tunable peeling method, capable of input insert and use by a selective switch used as a tunable ends of the is as a selective switch.