US 12,463,740 B1
Methods of injection locking for multiple optical source generation
Zhensheng Jia, Louisville, CO (US); David Daniel Smith, Boulder, CO (US); Junwen Zhang, Shanghai (CN); Luis Alberto Campos, Superior, CO (US); and Curtis D. Knittle, Superior, CO (US)
Assigned to Cable Television Laboratories, Inc., Louisville, CO (US)
Filed by CABLE TELEVISION LABORATORIES, INC., Louisville, CO (US)
Filed on Jan. 29, 2024, as Appl. No. 18/426,077.
Application 18/426,077 is a continuation of application No. 17/690,760, filed on Mar. 9, 2022, granted, now 11,909,512.
Claims priority of provisional application 63/158,762, filed on Mar. 9, 2021.
Int. Cl. H04J 14/02 (2006.01); H01S 5/40 (2006.01); H04B 10/50 (2013.01); H04B 10/80 (2013.01); H04J 14/00 (2006.01)
CPC H04J 14/002 (2013.01) [H01S 5/4006 (2013.01); H04B 10/5053 (2013.01); H04B 10/506 (2013.01); H04B 10/80 (2013.01); H04J 14/0247 (2013.01); H04B 10/505 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for using a single optical source in an optical communication network, comprising:
generating an optical source at a first device of the optical communication network using a laser;
transmitting the optical source over a fiber cable to a fiber node of the optical communication network;
generating a plurality of first optical sources using first coherent optical injection locking (COIL) within the fiber node, each of the plurality of first optical sources corresponding to a phase, wavelength, wavelength stability, and linewidth of the optical source;
transmitting one of the plurality of first optical sources to a first network equipment; and
generating a plurality of second optical sources using a second COIL within the first network equipment, each of the plurality of second optical sources having optical characteristics corresponding to optical characteristics of the one first optical source.