US 11,888,525 B2
Systems and methods for full duplex coherent optics
Zhensheng Jia, Superior, CO (US); Luis Alberto Campos, Superior, CO (US); Jing Wang, Broomfield, CO (US); Mu Xu, Broomfield, CO (US); Haipeng Zhang, Broomfield, CO (US); and Curtis Dean Knittle, Superior, CO (US)
Assigned to Cable Television Laboratories, Inc., Louisville, CO (US)
Filed by CABLE TELEVISION LABORATORIES, INC., Louisville, CO (US)
Filed on Feb. 8, 2021, as Appl. No. 17/170,403.
Application 17/170,403 is a continuation of application No. 16/676,295, filed on Nov. 6, 2019, granted, now 10,917,175.
Application 16/676,295 is a continuation in part of application No. 16/543,509, filed on Aug. 16, 2019, granted, now 11,082,143.
Application 16/543,509 is a continuation in part of application No. 16/274,152, filed on Feb. 12, 2019, granted, now 10,735,097, issued on Aug. 4, 2020.
Application 16/274,152 is a continuation in part of application No. 16/198,396, filed on Nov. 21, 2018, granted, now 10,892,829, issued on Jan. 12, 2021.
Claims priority of provisional application 62/756,378, filed on Nov. 6, 2018.
Claims priority of provisional application 62/636,249, filed on Feb. 28, 2018.
Claims priority of provisional application 62/629,555, filed on Feb. 12, 2018.
Claims priority of provisional application 62/589,121, filed on Nov. 21, 2017.
Prior Publication US 2021/0167857 A1, Jun. 3, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 10/40 (2013.01); H04B 10/61 (2013.01); H04B 10/50 (2013.01); H04L 5/14 (2006.01); H04B 10/25 (2013.01)
CPC H04B 10/40 (2013.01) [H04B 10/25891 (2020.05); H04B 10/50 (2013.01); H04B 10/61 (2013.01); H04L 5/14 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A first coherent optics transceiver for a full duplex (FDX) communication network, comprising:
a first coherent transmitting portion;
a first coherent receiving portion;
a control layer; and
a coherent optics interface including (i) a lineside interface portion, (ii) a clientside interface portion, and (iii) a management interface portion in communication with the control layer separately from the lineside interface portion and the clientside interface portion,
wherein the clientside interface portion is configured for electrical communication within at least one of the first coherent transmitting portion and the first coherent receiving portion,
wherein the lineside interface portion includes a directional element disposed between (i) an optical transport medium operably coupling the first coherent optics transceiver to a second coherent optics transceiver disposed remotely from the first coherent optics transceiver and configured to send and receive phase-modulated coherent optical signals to and from the first coherent optics transceiver, and (ii) the first coherent transmitting portion and the first coherent receiving portion, such that the directional element provides a dual optical communication interface with the first coherent transmitting portion and the first coherent receiving portion, respectively, and a single optical communication interface with the optical transport medium, and
wherein the phase-modulated coherent optical signals are simultaneously transmitted from the first coherent transmitting portion at the same wavelength at which the phase-modulated coherent optical signals are received by the first coherent receiving portion.