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.

Date of Patent:
Oct. 13, 2020

Filed:

Oct. 04, 2019
Applicant:

Neptune Subsea Ip Limited, London, GB;

Inventors:

Wayne S. Pelouch, McKinney, TX (US);

Edwin A. Zak, McKinney, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/293 (2013.01); H01S 3/067 (2006.01); H04B 10/079 (2013.01); H04J 14/02 (2006.01); H04B 10/80 (2013.01);
U.S. Cl.
CPC ...
H04B 10/2931 (2013.01); H01S 3/06716 (2013.01); H04B 10/07955 (2013.01); H04J 14/0221 (2013.01); H04B 10/80 (2013.01);
Abstract

An apparatus includes an optical amplifier configured to receive an input optical signal and generate an amplified output optical signal. The optical amplifier includes multiple amplifier stages including at least a first amplifier stage and a second amplifier stage. The apparatus also includes a gain clamp configured to accumulate optical power from the first amplifier stage after an optical power level of the input optical signal drops and provide a first portion of the accumulated optical power to the first amplifier stage to clamp a gain applied by the first amplifier stage. The gain clamp is also configured to provide a second portion of the accumulated optical power to the second amplifier stage to adjust a gain applied by the second amplifier stage. The second amplifier stage is configured to amplify the second portion of the accumulated optical power.


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