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This paper describes advances in the development of quasi-phase-matched (QPM) gallium phosphide (GaP) crystals for agile laser sources in the mid-infrared regions between 3–5 and 8–12μm. In the quest for a nonlinear optical material with the potential to efficiently convert near infrared energy (wavelength ∼1μm) to a powerful mid-infrared source, we have investigated the growth of GaP by hydride vapor...
This article presents recent results related to development of thick quasi-phase-matched GaP for incorporation in high power sources radiating in the mid-infrared. The focus was on increasing the growth rate and layer thickness of orientation patterned GaP, while ensuring equal vertical deposition rates and rectangular shape of the domain mesas for both opposite crystallographic lattice orientations...
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