Optical phase modulator

摘要

An optical phase modulator and modulation method is disclosed. An optical splitter diverts a portion of an input light signal into at least one diverted light signal, and at least one optical amplifier amplifies the at least one diverted light signal to provide at least one amplified light signal. At least one static phase shifter statically phase shifts the at least one amplified light signal to provide at least one phase-shifted diverted light signal, and an optical combiner combines the input light signal with the at least one phase-shifted diverted light signal to provide a phase-shifted combined light signal.

主权项

1. An optical phase modulator comprising:
an optical splitter operable to divert at least one portion of an input light signal into at least one diverted light signal; at least one optical amplifier operable to amplify the at least one diverted light signal to provide at least one amplified light signal; at least one static phase shifter operable to statically phase shift with a constant shift in phase the at least one amplified light signal to provide at least one phase-shifted diverted light signal; and an optical combiner operable to combine the input light signal with the at least one phase-shifted diverted light signal to provide a phase-shifted combined light signal at an output of the optical combiner, wherein a magnitude and power of the output is equal to a magnitude and power of the phase-shifted combined light signal at the input light signal, wherein the input light signal traverses a path from the optical splitter to the optical combiner that is unamplified and not phase shifted.