Optical modulator

摘要

An optical modulator that supports a plurality of modulation formats is provided. The optical modulator includes: a distribution part including an optical demultiplexing/variable-branching switchable circuit; an optical modulator array; and an aggregation part including a combining ratio variable combining circuit and/or an optical multiplexing/variable-combining switchable circuit. The distribution part forms any or a combination of a variable 1×M demultiplexer/brancher, a combination of one or more fixed ILFs and an optical switch and a combination of a plurality of variable optical couplers and an optical switch; the optical modulator array includes a plurality of optical modulators; the aggregation part includes a structure of any or a combination of one or more variable optical couplers, a combination of a plurality of variable attenuators, an M×1 variable coupler, a variable M×1 demultiplexer/brancher and a combination of one or more fixed ILFs and an optical switch.

主权项

1. An optical modulator comprising:
a distribution part including an optical demultiplexing/branching switchable circuit that can switch between an optical demultiplexing function and an optical branching function; an optical modulator array connected to the distribution part; and an aggregation part connected to the optical modulator array, the aggregation part including a combining ratio variable combining circuit that can change a combining ratio and/or an optical multiplexing/combining switchable circuit that can switch between an optical multiplexing function and an optical combining function.