US 11,949,783 B1
Quantum key distribution and management in passive optical networks
Jing Wang, Broomfield, CO (US); and Bernardo Huberman, Palo Alto, CA (US)
Assigned to CABLE TELEVISION LABORATORIES, INC., Louisville, CO (US)
Filed by CABLE TELEVISION LABORATORIES, INC., Louisville, CO (US)
Filed on Feb. 13, 2023, as Appl. No. 18/108,787.
Application 18/108,787 is a continuation of application No. 17/073,207, filed on Oct. 16, 2020, granted, now 11,582,031.
Claims priority of provisional application 62/928,118, filed on Oct. 30, 2019.
Claims priority of provisional application 62/916,553, filed on Oct. 17, 2019.
Claims priority of provisional application 62/916,562, filed on Oct. 17, 2019.
Int. Cl. H04L 9/08 (2006.01); G02F 1/313 (2006.01); G06N 10/00 (2022.01); H04B 10/27 (2013.01); H04B 10/50 (2013.01); H04B 10/66 (2013.01); H04B 10/70 (2013.01)
CPC H04L 9/0855 (2013.01) [G02F 1/313 (2013.01); G06N 10/00 (2019.01); H04B 10/50 (2013.01); H04B 10/66 (2013.01); H04B 10/70 (2013.01); H04L 9/0819 (2013.01); H04L 9/083 (2013.01); H04L 9/0894 (2013.01); G02F 2201/30 (2013.01); H04B 10/27 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
performing quantum key distribution to generate and distribute a cryptographic key that is shared by a remote node of a passive optical network and a central node of the passive optical network, wherein said performing comprises:
generating, by the remote node, a quantum pulse and a timing indication that indicates the quantum pulse;
transmitting, by the remote node, the timing indication to a passive optical component of the passive optical network; and
transmitting, by the remote node and based on said transmitting the timing indication, the quantum pulse to the passive optical component.