公开(公告)号：US20170122804A1

公开(公告)日：2017-05-04

申请号：US14925468

申请日：2015-10-28

Applicant: RANOVUS INC.

Inventor： Bin CAO ,  Dylan LOGAN

IPC: G01J1/44 ,  G01J1/04

CPC classification number: G01J1/44 ,  G01J1/0425 ,  G01J1/0429 ,  G01J2001/4466 ,  H04B10/6911

Abstract: An avalanche photodiode in a photonic integrated circuit with a waveguide optical sampling device is provided. Specifically, disclosed herein is a device which includes: an avalanche photodiode (APD) comprising a light input, an electrical output and a gain control input; a waveguide configured to convey on optical signal to the light input of the APD; an optical sampling device on the waveguide configured to sample an input light level of the optical signal, the waveguide and at least a portion of the optical sampling device formed from a photonic integrated circuit (PIC); and, a controller in communication with the optical sampling device and the gain control input, the controller configured to control a bias voltage to the gain control input of the APD based on the input light level of the optical signal received at the optical sampling device.