PHOTORECEIVER CIRCUIT, PHOTODETECTOR, PHOTODETECTOR ARRAY AND OPTICAL RECEIVER UNIT

Abstract: a photoreceiver circuit for a photodetector provides an output signal. the photoreceiver circuit includes a photodiode that receives an optical signal during a charge period and generates a charge corresponding to an intensity of the optical signal. the circuit includes at least one integrating transistor that accumulates the charge generated by the photodiode, and a reset circuit element that resets the photodiode after the charge period. the circuit also includes a comparator that provides the output signal of the photoreceiver circuit by comparing an output of the integrating transistor caused by the accumulated charge to a threshold value. the photoreceiver circuit can form part of a photodetector array, which can be used as part of an optical transceiver system.

Inventor(s): Paola COSTA, Kai SHI, Siew Shawn Yohanes, Charlie BOECKER

CPC Classification: H04B10/697 (Electrical arrangements in the receiver)

Search for rejections for patent application number 20250219741