US 12,255,686 B2
Per-span optical fiber nonlinearity compensation using integrated photonic computing
Yinqing Pei, Kanata (CA); David Boertjes, Nepean (CA); and Antoine Bois, Quebec (CA)
Assigned to CIENA CORPORATION, Hanover, MD (US)
Filed by Yinqing Pei, Kanata (CA); David Boertjes, Nepean (CA); and Antoine Bois, Quebec (CA)
Filed on Jan. 31, 2023, as Appl. No. 18/103,673.
Claims priority of provisional application 63/307,814, filed on Feb. 8, 2022.
Prior Publication US 2023/0254041 A1, Aug. 10, 2023
Int. Cl. H04B 10/2543 (2013.01); G02B 6/293 (2006.01); G06E 1/00 (2006.01); H04B 10/079 (2013.01); H01S 3/067 (2006.01); H01S 3/16 (2006.01)
CPC H04B 10/2543 (2013.01) [G02B 6/29304 (2013.01); G06E 1/00 (2013.01); H04B 10/0799 (2013.01); H01S 3/06754 (2013.01); H01S 3/1608 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A photonic computing chip (PCC) comprising:
photonic circuit elements configured to apply optical signal processing to an input optical signal to generate an output optical signal, wherein the input optical signal comprises nonlinearity contributed by a target optical fiber; and
at least one electronic circuit element configured to control the optical signal processing based on values of fiber parameters characterizing the target optical fiber and a mapping associated with the PCC,
wherein the optical signal processing comprises operations emulating an inverse of a nonlinear transfer function of the target optical fiber, such that the PCC reduces the nonlinearity in the output optical signal relative to the nonlinearity in the input optical signal.