Fluoride crystals for tunable lasers in the near infrared



Laser emission in the near infrared has been studied for a long tme with the aim of developing efficient solid-state sources. As part of the development of such a source, an investigation of the fluorescence of the active medium (LiYF4 doped with either Er or Er ad Tm) in the laser cavity has provided deeper insights into the mode of operation of the laser. Since the near infrared is an “eye-safe” region, applications can be foreseen wherever atmospheric propagation is required.