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:
May. 06, 2025
Filed:
Jan. 24, 2024
Cisco Technology, Inc., San Jose, CA (US);
Gianlorenzo Masini, Carlsbad, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
The present disclosure describes an optical system that uses a source optical signal to bias a receiver photodiode. The system includes an optical source, a receiver photodiode, a first biasing photodiode, a variable optical attenuator, and a compensation photodiode. The optical source produces a first optical signal. The receiver photodiode converts a second optical signal into an electrical signal. The first biasing photodiode generates a bias voltage for the receiver photodiode based on a first portion of the first optical signal. The variable optical attenuator produces a third optical signal based on (i) a second portion of the first optical signal and (ii) a portion of the electrical signal. The compensation photodiode passes the portion of the electrical signal based on the third optical signal.