Widely tunable continuous-wave mid-infrared laser source based on difference-frequency generation in AgGaS2

摘要

We demonstrate difference-frequency generation in the 6.8-12.5-mu m range by mixing two high-power single-frequency laser diodes in a type II AgGaS2, crystal. This compact all-solid-state scheme provides maximum output powers that exceed 1 mu W and permits continuous adjustment-free scans larger than 2 cm(-1) across the entire tuning range. (C) 1998 Optical Society of America. [References: 12]