Simultaneous quasi-phase-matching in OP-GaAs
Abstract
Simultaneous quasi-phase-matching of two nonlinear interactions within a single orientation-patterned GaAs (OP-GaAs) grating was experimentally demonstrated for the first time, to the best of our knowledge. When pumped by the signal (2.74 μm) and idler (8.77 μm) output beams of a ZGP-based optical parametric oscillator, the designed aperiodic OP-GaAs grating produces a 2.09-μm and a 3.99-µm output with power levels of several milliwatts via the sum-frequency generation and difference-frequency generation, respectively, of the beams involved. This research opens up new possibilities for the development of engineered single OP-GaAs gratings, which can simultaneously produce multiple wavelengths in the whole infrared spectrum.
Fields of Study & Subjects
Photorefractive and Nonlinear Optics
Solid State Laser Technologies
Crystal Structures and Properties
Publication details
- Journal / source
- Optics Letters
- Volume
- 51
- Issue
- 3
- Pages
- 788–788
- Publication date
- 14 January 2026
- Language
- EN