Invention Grant
- Patent Title: Split optical front end receivers
-
Application No.: US16157946Application Date: 2018-10-11
-
Publication No.: US10797801B2Publication Date: 2020-10-06
- Inventor: Gilles P. Denoyer , Dennis Pu , Homero Guimaraes , Faraz Monifi , Bryan Park , Daniel Mahgerefteh
- Applicant: Finisar Corporation
- Applicant Address: US DE Wilmington
- Assignee: II-VI Delaware Inc.
- Current Assignee: II-VI Delaware Inc.
- Current Assignee Address: US DE Wilmington
- Agency: Maschoff Brennan
- Main IPC: H04B10/69
- IPC: H04B10/69 ; H04B10/67

Abstract:
An optical receiver with improved dynamic range may include at least one directional coupler having at least one input configured to couple to an optical fiber. The optical receiver may include a first signal path including a first photodetector coupled to an output of the at least one directional coupler, a first transimpedance amplifier (TIA) including an input coupled to the first photodetector, and an adder coupled to an output of the first TIA. The optical receiver may include a second signal path including a second photodetector coupled to an output of the at least one directional coupler, a second TIA including an input coupled to the second photodetector, and the adder coupled to an output of the second TIA. Further, the optical receiver may include an optical power sensing circuit coupled to at least one of the first TIA, the second TIA, and the adder.
Public/Granted literature
- US20190109649A1 SPLIT OPTICAL FRONT END RECEIVERS Public/Granted day:2019-04-11
Information query