Singly resonant proustite parametric oscillator tuned from 1.22 to 8.5 μm

Abstract

A singly resonant parametric oscillator based on proustite has been operated for the first time. The device was pumped by a Q‐switched neodymium (1.065 μm) laser in a noncollinear phase‐matching geometry. The output has been tuned over the wavelength range 1.22–8.5 μm. The idler power was typically ∼100 W in a bandwidth of ∼1 cm⁻¹.