Characterization of thermo-optic effects in diode end pumped lasers

Jarosław Jagus; Jacek Kwiatkowski; Waldemar Zendzian; Jan K. Jabczyński

doi:10.1117/12.620591

11 October 2005 Characterization of thermo-optic effects in diode end pumped lasers

Jarosław Jagus, Jacek Kwiatkowski, Waldemar Zendzian, Jan K. Jabczyński

Proceedings Volume 5958, Lasers and Applications; 595821 (2005) https://doi.org/10.1117/12.620591
Event: Congress on Optics and Optoelectronics, 2005, Warsaw, Poland

Abstract

Review of thermo-optic effects in gain media of diode end pumped lasers is presented. Degradation in beam quality due to these effects is analyzed theoretically and verified in experiments. The slit scan method was implemented for registration of intensity profiles along the caustics of laser beam. The M² parameter, coherence degree, and thermal lens power of gain medium in dependence on pumping rate, were determined using Wigner transform and ABCD methods. Investigations of neodymium lasers (Nd:YVO₄, Nd:YAP) operating in free running or Q-switching regimes were carried out. Detrimental role of up-conversion processes for Nd:YAP laser was shown.

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Jarosław Jagus, Jacek Kwiatkowski, Waldemar Zendzian, and Jan K. Jabczyński "Characterization of thermo-optic effects in diode end pumped lasers", Proc. SPIE 5958, Lasers and Applications, 595821 (11 October 2005); https://doi.org/10.1117/12.620591

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KEYWORDS

Resonators

Continuous wave operation

Thermal effects

Diodes

Laser resonators

Semiconductor lasers

Q switched lasers

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