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. 12, 2021

Filed:

Nov. 17, 2020
Applicant:

Cox Communications, Inc., Atlanta, GA (US);

Inventor:

Harjinder S. Ghuman, Atlanta, GA (US);

Assignee:

Cox Communications, Inc., Atlanta, GA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 14/02 (2006.01); H04B 10/2525 (2013.01); H04B 10/27 (2013.01);
U.S. Cl.
CPC ...
H04J 14/0227 (2013.01); H04B 10/2525 (2013.01); H04B 10/27 (2013.01);
Abstract

This disclosure describes C and L band optical communications module link extender, and related systems and methods. An example method may include receiving, by a dense wave division multiplexer (DWDM) at a headend, one or more optical data signals over a C band and an L band. The example method may also include combining the one or more optical data signals. The example method may also include outputting the combined one or more optical data signals to a first WDM at the headend. The example method may also include separating, by the first WDM, the combined one or more optical data signals into a C band signal and an L band signal. The example method may also include outputting the C band signal to a first amplifier at the headend and the L band signal to a second amplifier at the headend. The example method may also include amplifying, by the first amplifier, the C band signal. The example method may also include outputting the amplified C band signal to a coexistence filter. The example method may also include amplifying, by the second amplifier, the L band signal. The example method may also include outputting the amplified L band signal to the coexistence filter. The example method may also include outputting, by the coexistence filter, the amplified C band signal and the amplified L band signal to an optical switch. The example method may also include outputting, by the optical switch, an egress optical data signal to a first fiber.


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