US 12,362,826 B2
Optical frequency spectral optimization in dense wavelength division multiplexing (DWDM) flex grid systems
James E. Shearer, Jenks, OK (US); and Paul M. Johnson, Littleon, CO (US)
Assigned to Level 3 Communications, LLC, Denver, CO (US)
Filed by Level 3 Communications, LLC, Broomfield, CO (US)
Filed on Mar. 24, 2023, as Appl. No. 18/126,167.
Claims priority of provisional application 63/479,502, filed on Jan. 11, 2023.
Prior Publication US 2024/0235677 A1, Jul. 11, 2024
Int. Cl. H04B 10/00 (2013.01); H04B 10/112 (2013.01); H04J 14/02 (2006.01); H04J 14/00 (2006.01)
CPC H04B 10/1129 (2013.01) [H04J 14/0201 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method, comprising:
based on a determination that one or more gaps of optical spectrum exist in a range of optical spectrum that contains one or more first media channels that support transmission of corresponding one or more first signals, determining, by a computing system, a network wavelength service frequency assignment for shifting frequency of at least one first media channel among the one or more first media channels to optimize one or more spacings among the one or more first media channels in the range of optical spectrum for supporting transmission of one or more second signals;
causing, by the computing system, one or more optical signal devices to shift a center frequency of each of the at least one first media channel, based on the determined network wavelength service frequency assignment;
receiving, by the computing system and from a spectrum analyzer, one or more measurements of the one or more first media channels of the range of optical spectrum; and
determining, by the computing system, whether the one or more gaps of optical spectrum exist in the range of optical spectrum based at least in part on the one or more measurements.