Mid-wave infrared generation by difference frequency mixing of continuous wave lasers in orientation-patterned Gallium Phosphide

Abstract

Frequency conversion of continuous wave beams was observed for the first time in orientation patterned gallium phosphide (OP-GaP) through difference frequency generation of 3400.5 nm light from mixing of 1064.6 nm and 1549.8 nm fiber laser beams. The dependence of the power of the generated beam on the polarization states of the two incident beams was studied theoretically and experimentally.