HETEROGENEOUS SPECTROSCOPIC TRANSCEIVING PHOTONIC INTEGRATED CIRCUIT SENSOR

摘要

Described herein are optical sensing devices for photonic integrated circuits (PICs). A PIC may comprise a plurality of waveguides formed in a silicon on insulator (SOI) substrate, and a plurality of heterogeneous lasers, each laser formed from a silicon material of the SOI substrate and to emit an output wavelength comprising an infrared wavelength. Each of these lasers may comprise a resonant cavity included in one of the plurality of waveguides, and a gain material comprising a non-silicon material and adiabatically coupled to the respective waveguide. A light directing element may direct outputs of the plurality of heterogeneous lasers from the PIC towards an object, and one or more detectors may detect light from the plurality of heterogeneous lasers reflected from or transmitted through the object.

主权项

1. A system comprising:
a photonic integrated circuit (PIC) comprising:
a plurality of waveguides formed in a silicon on insulator (SOI) substrate; anda plurality of heterogeneous lasers, each laser formed from a silicon material of the SOI substrate and to emit an output wavelength comprising an infrared wavelength, each laser comprising:
a resonant cavity included in one of the plurality of waveguides; anda gain material comprising a non-silicon material and adiabatically coupled to the respective waveguide; a light directing element to direct outputs of the plurality of heterogeneous lasers from the PIC towards an object; and one or more detectors to detect light from the plurality of heterogeneous lasers reflected from or transmitted through the object.