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. 17, 2017

Filed:

Jan. 11, 2017
Applicant:

Mox Networks, Llc, Culver City, CA (US);

Inventor:

David Hochhalter, Annandale, VA (US);

Assignee:

Mox Networks, LLC, Culver City, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/13 (2006.01); H01S 3/30 (2006.01); G02B 6/42 (2006.01); H01S 3/131 (2006.01); H01S 3/091 (2006.01);
U.S. Cl.
CPC ...
H01S 3/1312 (2013.01); G02B 6/4286 (2013.01); H01S 3/0912 (2013.01); H01S 3/1301 (2013.01); H01S 3/1305 (2013.01); H01S 3/1306 (2013.01); H01S 3/302 (2013.01);
Abstract

A distributed Raman amplifier comprises a loss-measuring device that measures losses in an optical fiber transmission line; a signal processing circuit that compares the measured losses to a threshold, below which a pumping light source is permitted to pump the transmission line; a control circuit responsive to a control signal from the signal processing circuit for controlling operation of the pumping light source; and a spool of fiber configurable to be optically coupled between the pumping light source and optical point-loss sources in the transmission line when the losses are above the threshold. The spool of fiber has a fiber of sufficient length to offset aggregated losses, which prevents the distributed Raman amplifier from shutting down while also allowing the distributed Raman amplifier to achieve entitled gain by pumping the fiber in the spool.


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