Electronically tuned Cr:ZnSe laser pumped with Q-switched Tm:YAG laser

We demonstrated a Q-switched, Tm:YAG-laser-pumped electronically tuned Cr:ZnSe laser, which was equipped with an acousto-optic tunable filter as a wavelength-tuning element. A tuning range from 2.17 to 2.71 μm and a maximum output energy of 7.9 mJ at 2.41 μm were realized. The energy conversion efficiency reached 34.1% at 2.41 μm. In addition, the Cr:ZnSe laser produced a high-quality beam in the TEM(00) mode.