Investigative study of a diode-pumped continuous-wave Tm:YAP laser as an efficient 1.94 μm pump source

Jacek Kwiatkowski; Waldemar Zendzian; Jan K. Jabczynski

doi:10.1117/12.2257886

8 December 2016 Investigative study of a diode-pumped continuous-wave Tm:YAP laser as an efficient 1.94 μm pump source

Jacek Kwiatkowski, Waldemar Zendzian, Jan K. Jabczynski

Proceedings Volume 10159, Laser Technology 2016: Progress and Applications of Lasers; 1015904 (2016) https://doi.org/10.1117/12.2257886
Event: XIth Symposium on Laser Technology, 2016, Jastarnia, Poland

Abstract

A detailed study of a Tm:YAP laser in continuous-wave (CW), single-pass end-pumped by a 793 nm diode laser is presented. The laser based on c-cut 3 at. % Tm:YAP crystal was experimentally examined and presented in the dependence on transmittance and radius of curvature of output coupling mirrors. A detailed spectral analysis was presented. The influence of a heat-sink cooling water temperature on the laser performance was studied. At room temperature, for an output coupling transmission of 19.5%, the maximum CW output power of 4.53 W was achieved, corresponding to a slope efficiency of 41.5% and an optical-to-optical conversion efficiency of 25.7% with respect to the incident pump power, respectively. We have shown that the output spectrum at a certain wavelength (e.g. 1940 nm) for a given pump power can be realized via the change of resonator parameters (OC transmittance, mode size).

Citation Download Citation

Jacek Kwiatkowski, Waldemar Zendzian, and Jan K. Jabczynski "Investigative study of a diode-pumped continuous-wave Tm:YAP laser as an efficient 1.94 μm pump source", Proc. SPIE 10159, Laser Technology 2016: Progress and Applications of Lasers, 1015904 (8 December 2016); https://doi.org/10.1117/12.2257886

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KEYWORDS

Crystals

Semiconductor lasers

Output couplers

Continuous wave operation

Laser crystals

Mirrors

Transmittance

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