OPTICAL MACH-ZEHNDER INTERFEROMETERS WITH LOW POLARIZATION DEPENDENCE

摘要

This relates generally to optical waveguide-based devices including dynamically programmable optical attenuators. In particular, this provides an optical attenuator having a Mach-Zehnder configuration with reduced polarization dependence. The devices herein facilitate the implementation of continuously-variable optical attenuators, optical shutters, and optical switches in an integrated photonic circuit.