Patent · US Active

Feeder fiber and central office redundancy

US10439722B2 · kind B2 · utility

0Cited by

0References

21Claims

0Family size

Assignee

Google LLC · US

Inventors

Liang Du · Atlanta, US
Yut Loy Chan · San Jose, US
Xiangjun Zhao · Fremont, US
Changhong Joy Jiang · Zhejiang, CN
Cedric Fung Lam · Milpitas, US
Daoyi Wang · San Jose, US
Tao Zhang · Beijing, CN

Key dates

Filing date	Jul 17, 2018
Grant date	Oct 8, 2019
Priority date	—
Expiry date	Jul 17, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04J14/0291
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.