The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2022
Filed:
Apr. 20, 2021
Applicant:
Ciena Corporation, Hanover, MD (US);
Inventors:
Assignee:
Ciena Corporation, Hanover, MD (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/107 (2006.01); H04B 10/69 (2013.01); H01L 31/02 (2006.01); H04B 10/61 (2013.01);
U.S. Cl.
CPC ...
H01L 31/107 (2013.01); H01L 31/02027 (2013.01); H04B 10/616 (2013.01); H04B 10/6911 (2013.01);
Abstract
System and methods implemented in a coherent receiver having a pair of Avalanche Photodiodes (APD) include adjusting one or more of a reverse bias voltage (VAPD) on a P-path (VAPD) and on an N-path (VAPD) responsive to an output (P) that indicates electrical power of an AC common-mode input signal; adjusting a Transimpedance Amplifier (TIA) common-mode AC response, Adj, responsive to an output (P) that indicates electrical power of an AC common-mode output signal; and/or adjusting one or more of VAPDand VAPDresponsive to received signal Signal-to-Noise Ratio (SNR).