Broadly Tunable Room-temperature Operation Co∶MgF_2 Laser

Different order of interference with birefringent filter and sets of mirror were applied to room-temperature operation of Co∶MgF 2 tunable laser. A laser with continuous tuning range from 1700 nm to 2550 nm with output energy up to 115 mJ and 16% conversion efficiency at 2090 nm peak wavelength was obtained.