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:
Aug. 14, 2018

Filed:

Dec. 20, 2016
Applicant:

Google Inc., Mountain View, CA (US);

Inventors:

Liang Du, Santa Clara, CA (US);

Yut Loy Chan, San Jose, CA (US);

Xiangjun Zhao, Fremont, CA (US);

Changhong Joy Jiang, Dublin, CA (US);

Cedric Fung Lam, San Carlos, CA (US);

Daoyi Wang, San Jose, CA (US);

Tao Zhang, Mountain View, CA (US);

Assignee:

Google LLC, Mountain View, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 10/25 (2013.01); H04J 14/02 (2006.01);
U.S. Cl.
CPC ...
H04B 10/2503 (2013.01); H04J 14/0227 (2013.01);
Abstract

A carrier office includes an optical line terminal, a first transmit-erbium-doped fiber amplifier (EDFA), and a second transmit-EDFA. The OLT is configured to transmit first and second optical signals. The first transmit-EDFA is optically coupled to the OLT and a first feeder fiber, and the first feeder fiber is optically coupled to a first remote node (RN). The first transmit-EDFA is operable between a respective enabled state and a respective disabled state. The second transmit-EDFA is optically coupled to the OLT and a second feeder fiber, and the second feeder fiber is optically coupled to a second RN. The second transmit-EDFA is operable between a respective enabled state and a respective disabled state.


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