US 12,306,513 B2
Nonlinear wave mixing system with grating-assisted phase matching
Matthew Wade Puckett, Phoenix, AZ (US); Chad Fertig, Roseville, MN (US); Matthew Robbins, Minneapolis, MN (US); and Jad Salman, Wayzata, MN (US)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Feb. 22, 2024, as Appl. No. 18/584,710.
Application 18/584,710 is a division of application No. 17/900,688, filed on Aug. 31, 2022, granted, now 11,940,715.
Prior Publication US 2024/0192574 A1, Jun. 13, 2024
Int. Cl. G02F 1/35 (2006.01); G02F 1/365 (2006.01); G02F 1/377 (2006.01); H01S 3/00 (2006.01); H01S 3/109 (2006.01)
CPC G02F 1/3548 (2021.01) [G02F 1/353 (2013.01); G02F 1/3534 (2013.01); G02F 1/3544 (2013.01); G02F 1/365 (2013.01); G02F 1/3775 (2013.01); H01S 3/0092 (2013.01); H01S 3/109 (2013.01); G02F 2201/305 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A method of forming a nonlinear wave mixing system with grating assisted phase matching, the method comprising:
determining a momentum of a backward grating needed to generate counter-propagating phase matching in produced light; and
forming the backward grating using the determined momentum of the backward grating in a nonlinear waveguide, the backward grating configured to diffract the produced light in a backward direction relative to a direction the produced light traveled in the nonlinear waveguide to reach the backward grating, the backward grating including at least one short period sidewall that provides a grating diffraction momentum that produces a phase matching condition.