公开(公告)号：EP4456451A1

公开(公告)日：2024-10-30

申请号：EP23205101.1

申请日：2023-10-23

Applicant: GlobalFoundries U.S. Inc.

Inventor： Sharma, Prateek Kumar ,  Chatterjee, Avijit ,  Nandi, Riddhi ,  Minasamudram, Rupa Gopinath

IPC: H04B10/69

Abstract: Disclosed are a multi-photodetector circuit and an optical receiver incorporating the circuit. The circuit includes parallel-connected photodiodes. In some embodiments, photodiodes are connected, in a same direction, between a positive power supply line and an output line. They receive equal power optical signals or a series of 1:2 optical dividers is employed so each photodiode receives a progressively lower power signal until the last two photodiodes, which receive equal power optical signals. In other embodiments, first photodiodes are connected, in one direction, between a positive power supply line and an output line and second photodiodes are connected, in an opposite direction, between a negative power supply line and the output line. First photodiodes receive equal power optical signals from an optical divider in response to an optical input signal and second photodiodes receive equal power optical signals from another optical divider in response to an inverted optical input signal.