US 11,990,985 B2
Time division multiple access optical subcarriers
Amir Jafari, Ottawa (CA); Kuang-Tsan Wu, Kanata (CA); David F. Welch, Atherton, CA (US); Steven Joseph Hand, Los Gatos, CA (US); and Mohamed Osman, Ottawa (CA)
Assigned to Infinera Corporation, San Jose, CA (US)
Filed by Infinera Corporation, San Jose, CA (US)
Filed on Sep. 9, 2022, as Appl. No. 17/941,174.
Application 17/941,174 is a continuation of application No. 16/809,441, filed on Mar. 4, 2020, granted, now 11,451,292.
Claims priority of provisional application 62/813,151, filed on Mar. 4, 2019.
Prior Publication US 2023/0006737 A1, Jan. 5, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 7/26 (2006.01); H04B 10/077 (2013.01); H04B 10/079 (2013.01); H04B 10/25 (2013.01); H04B 10/2575 (2013.01); H04B 10/40 (2013.01); H04B 10/50 (2013.01); H04B 10/548 (2013.01); H04B 10/61 (2013.01); H04B 10/69 (2013.01); H04J 14/00 (2006.01); H04J 14/02 (2006.01); H04J 14/08 (2006.01); H04J 99/00 (2009.01); H04L 1/00 (2006.01); H04L 5/00 (2006.01); H04Q 11/00 (2006.01)
CPC H04B 7/2656 (2013.01) [H04B 10/0773 (2013.01); H04B 10/0793 (2013.01); H04B 10/25 (2013.01); H04B 10/25754 (2013.01); H04B 10/40 (2013.01); H04B 10/503 (2013.01); H04B 10/504 (2013.01); H04B 10/505 (2013.01); H04B 10/548 (2013.01); H04B 10/61 (2013.01); H04B 10/613 (2013.01); H04B 10/69 (2013.01); H04J 14/005 (2013.01); H04J 14/0298 (2013.01); H04J 14/08 (2013.01); H04J 99/00 (2022.08); H04L 1/0041 (2013.01); H04L 1/0045 (2013.01); H04L 1/0071 (2013.01); H04L 5/001 (2013.01); H04Q 11/0005 (2013.01); H04Q 11/0067 (2013.01); H04Q 2011/0015 (2013.01); H04Q 2011/0035 (2013.01); H04Q 2011/0079 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A receiver, comprising:
a local oscillator laser operable to provide a first optical signal;
an optical hybrid circuit operable to receive first and second polarization components of the first optical signal and receive first and second polarization components of a second optical signal, the second optical signal including a plurality of optical subcarriers, one of the plurality of optical subcarriers carrying first data indicative of received first information during a first time slot and said one of the plurality of optical subcarriers carrying second data indicative of received second information during a second time slot, the optical hybrid circuit being operable to provide a plurality of mixing products, such that said one of the plurality of optical subcarriers is received by the receiver;
photodiode circuitry operable to receive the plurality of mixing products and being operable to provide a first plurality of electrical signals, the first plurality of electrical signals being analog signals;
digital signal processing circuitry operable to provide second electrical signals based on the first plurality of electrical signals;
burst demodulator circuitry operable to output first symbols during a first time interval, the first symbols being indicative of the received first information and the second symbols being indicative of the received second information during a second time interval.