US 11,689,287 B2
Optical communications module link extender including ethernet and PON amplification
Harjinder S. Ghuman, Atlanta, GA (US)
Assigned to COX COMMUNICATIONS, INC., Atlanta, GA (US)
Filed by Cox Communications, Inc., Atlanta, GA (US)
Filed on Aug. 13, 2021, as Appl. No. 17/401,968.
Application 17/401,968 is a continuation in part of application No. 17/344,309, filed on Jun. 10, 2021.
Application 17/344,309 is a continuation in part of application No. 17/175,251, filed on Feb. 12, 2021, granted, now 11,323,788.
Prior Publication US 2022/0263577 A1, Aug. 18, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04Q 11/00 (2006.01); H04J 14/02 (2006.01); H04B 10/27 (2013.01)
CPC H04B 10/27 (2013.01) [H04J 14/02 (2013.01); H04Q 11/0062 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical communication module link extender (OCML) system comprising:
a multiplexer at a headend and configured to receive a first Passive Optical Network (PON) signal in a downstream direction and output the first PON signal;
a first dense wave division multiplexer (DWDM) at the headend and configured to receive a first Ethernet signal in the downstream direction and output the first Ethernet signal to a dispersion correction module (DCM);
an optical switch at the headend; and
a first wavelength-division multiplexer (WDM) at the headend and configured to receive the first PON signal and the first Ethernet signal, combine the first PON signal and the first Ethernet signal, and output a combined downstream signal to the optical switch, and further configured to receive, from the optical switch, a combined upstream signal including a second Ethernet signal and a second PON signal, and output the combined upstream signal in an upstream direction.