Acousto-optic modulation in diode pumped solid state lasers

Jan K. Jabczynski; Waldemar Zendzian; Jacek Kwiatkowski

doi:10.1117/12.726649

1 February 2007 Acousto-optic modulation in diode pumped solid state lasers

Jan K. Jabczynski, Waldemar Zendzian, Jacek Kwiatkowski

Proceedings Volume 6599, Laser Technology VIII: Progress in Lasers; 65990B (2007) https://doi.org/10.1117/12.726649
Event: Laser Technology VIII, 2006, Szczecin, Poland

Abstract

The main properties of acousto-optic modulators (AOM) applied in laser technology are presented and discussed in the paper. The critical review of application of AOMs in several types of diode pumped solid state lasers (DPSSL) is given. The short description of few DPSSLs developed in our group is presented in the following chapters of the paper. The parameters of a simple AO-Q-switched Nd:YVO₄ laser (peak power up to 60 kW, pulse duration of 5-15 ns, repetition rate in the range 10-100 kHz, with average power above 5 W) are satisfactory for different application as follows: higher harmonic generation, pumping of 'eye-safe' OPOs etc. The achieved brightness of 10¹⁷ W/m²/srd is comparable to the strongest technological Q-switched lasers of kW class of average power. The main aim of paper is to present novel type of lasers with acousto-optic modulation namely: AO-q-switched and mode locked (AO-QML) lasers. We have designed the 3.69-m long Z-type resonator of the frequency matched to the RF frequency of AOM. As a gain medium the Nd:YVO₄ crystal end pumped by 20 W laser diode was applied. The energy of envelope of QML pulse train was up to 130 &mgr;J with sub-nanosecond mode locked pulse of maximum 30-&mgr;J energy.

Citation Download Citation

Jan K. Jabczynski, Waldemar Zendzian, and Jacek Kwiatkowski "Acousto-optic modulation in diode pumped solid state lasers", Proc. SPIE 6599, Laser Technology VIII: Progress in Lasers, 65990B (1 February 2007); https://doi.org/10.1117/12.726649

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