Characterization of diode-laser stacks for high-energy-class solid state lasers

Jan Pilar; Pawel Sikocinski; Alina Pranowicz; Martin Divoky; P. Crump; R. Staske; Antonio Lucianetti; Tomas Mocek

doi:10.1117/12.2042058

7 March 2014 Characterization of diode-laser stacks for high-energy-class solid state lasers

Jan Pilar, Pawel Sikocinski, Alina Pranowicz, Martin Divoky, P. Crump, R. Staske, Antonio Lucianetti, Tomas Mocek

Proceedings Volume 8965, High-Power Diode Laser Technology and Applications XII; 896516 (2014) https://doi.org/10.1117/12.2042058
Event: SPIE LASE, 2014, San Francisco, California, United States

Abstract

In this work, we present a comparative study of high power diode stacks produced by world’s leading manufacturers such as DILAS, Jenoptik, and Quantel. The diode-laser stacks are characterized by central wavelength around 939 nm, duty cycle of 1 %, and maximum repetition rate of 10 Hz. The characterization includes peak power, electrical-to-optical efficiency, central wavelength and full width at half maximum (FWHM) as a function of diode current and cooling temperature. A cross-check of measurements performed at HiLASE-IoP and Ferdinand-Braun-Institut (FBH) shows very good agreement between the results. Our study reveals also the presence of discontinuities in the spectra of two diode stacks. We consider the results presented here a valuable tool to optimize pump sources for ultra-high average power lasers, including laser fusion facilities.

Citation Download Citation

Jan Pilar, Pawel Sikocinski, Alina Pranowicz, Martin Divoky, P. Crump, R. Staske, Antonio Lucianetti, and Tomas Mocek "Characterization of diode-laser stacks for high-energy-class solid state lasers", Proc. SPIE 8965, High-Power Diode Laser Technology and Applications XII, 896516 (7 March 2014); https://doi.org/10.1117/12.2042058

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