US 11,990,944 B1
Communication networks including quantum dot coherent comb lasers, and associated methods
Haipeng Zhang, Broomfield, CO (US); Mu Xu, Broomfield, CO (US); Zhensheng Jia, Superior, CO (US); and Luis Alberto Campos, Superior, CO (US)
Assigned to Cable Television Laboratories, Inc., Louisville, CO (US)
Filed by Cable Television Laboratories, Inc., Louisville, CO (US)
Filed on Feb. 10, 2022, as Appl. No. 17/650,644.
Claims priority of provisional application 63/147,884, filed on Feb. 10, 2021.
Int. Cl. H04B 10/70 (2013.01); H01S 5/10 (2021.01); H01S 5/34 (2006.01)
CPC H04B 10/70 (2013.01) [H01S 5/1032 (2013.01); H01S 5/3412 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for generating optical communication signals in a communication network, the method comprising:
generating at least a first optical tone and a second optical tone using a quantum dot (QD) coherent comb laser (CCL), the first and second optical tones having different respective wavelengths, the QD CCL being a self-mode-locking laser;
modulating the first optical tone according to a first modulation signal to generate a first communication signal; and
modulating the second optical tone according to a second modulation signal to generate a second communication signal.