Diode-pumped, room-temperature Tm:YAP laser

Abstract

Room-temperature operation of a continuous-wave Tm:YAP laser is reported. A 3 W laser diode in an end-pumped geometry is used to generate 730 mW of thulium laser output, which represents a conversion efficiency of 42% in terms of absorbed pump power. The laser operates on a number of lines in the wavelength range 1.965 to 2.020 mum.

Diode-pumped room-temperature continuous wave Tm3+doped Lu2SiO5laser

“…• C. With the thulium population restricted to reside in only the ground and the first excited state, the fractional inversion threshold F is given by [23] …”

Growing Large Size Complex Oxide Single Crystals by Czochralski Technique for Electronic Devices

“…Nowadays the YAP:Tm crystal is considered one of the best laser materials that generate in the region of 2 µm of wavelengths [22]. Laser radiation in this region is widely used in military equipment [23], meteorology, and location [24].…”

Distribution of dislocation etch pits and its influence on the optical properties of 2μm waveband Tm:YAP laser crystal

“…It is derived from the same Y 2 O 3 -Al 2 O 3 system as the more commonly used laser host Y 3 Al 5 O 12 (YAG). Compared with YAG of cubic structure, which leads to thermal birefringence and consequent depolarization losses when thermally loaded, YAP and its natural birefringence have some advantages [2][3][4].…”