Indium phosphide (InP) tunable transceivers enabled many applications in the telecommunication industry. Recently, advances in silicon photonics (SiPh) have led to high density photonicsintegrated circuits (PICs) including optical phased arrays (OPA) for 2D beamsteering applications.  Our group has been developing an InP PIC transceiver for frequency modulated continuous wave (FMCW) LiDAR. The PIC transceiver consists of a tunable laser and frequency discriminator to enable frequency locking and modulation, and a self-heterodyne receiver. The PIC transceiver can drive a SiPh OPA to enable a compact LiDAR system for 3D mapping and remote sensing for autonomous vehicles.



  1. Indium Phosphide Photonic Integrated Circuit Transmitter with Integrated Linewidth Narrowing for Laser Communications and Sensing“,International Semiconductor Laser Conference, Session: MC 2018

Collaborators: Larry Coldren (UCSB), John Bowers (UCSB), Lockheed Martin