Patent ID: 11940715
Assignee: HONEYWELL INTERNATIONAL INC.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A nonlinear wave mixing system with grating assisted phase matching, the system comprising:
a pump laser to generate pump light at a select wavelength; and
a nonlinear waveguide configured to generate produced light from the pump light that is directed into the nonlinear waveguide, the nonlinear waveguide including at least one backward grating configured to diffract the produced light in a backward direction relative to a direction the produced light travels in the nonlinear waveguide to reach the backward grating, the backward grating having a grating momentum that generates counter-propagating phase matching in the produced light in one of a forward-to-backward second harmonic generation and a forward-to-backward down conversion generation.