LIGHT ABSORPTION AND SCATTERING DEVICES IN A PHOTONIC INTEGRATED CIRCUIT

摘要

A photonic integrated circuit is provided that may include a substrate; one or more optical sources, on the substrate, to output light associated with a corresponding one or more optical signals; one or more waveguides connected to the one or more optical sources; a multiplexer connected to the one or more waveguides; and one or more light absorptive structures, located on the substrate adjacent to one of the one or more optical sources, one of the one or more waveguides, and/or the multiplexer, to absorb a portion of the light associated with at least one of the corresponding one or more optical signals.

主权项

1. A photonic integrated circuit comprising:
a substrate; a coupler provided on the substrate, the coupler having an input port and first and second output ports, the input port receiving an optical signal, the first output port supplying a first portion of the optical signal and the second output port supplying a second portion of the optical signal; an output waveguide circuit that receives the first portion of the optical signal; and an integrated structure provided on the substrate at the second output port that scatters part of the second portion of the optical signal without an electrical bias applied to the structure or routing of the second portion of the optical signal off the substrate.