High-power diode-pumped solid state lasers

Richard W. Solarz; George F. Albrecht; Raymond J. Beach; Brian J. Comaskey

doi:10.1117/12.144107

11 May 1993 High-power diode-pumped solid state lasers

Richard W. Solarz, George F. Albrecht, Raymond J. Beach, Brian J. Comaskey

Proceedings Volume 1979, 1992 International Conference on Lasers and Optoelectronics; (1993) https://doi.org/10.1117/12.144107
Event: 1992 International Conference on Lasers and Optoelectronics, 1992, Bejing, China

Abstract

Although operational for over twenty years, diode pumped solid state lasers have, for most of their existence, been limited to individual diodes pumping a tiny volume of active medium in an end pumped configuration. More recent years have witnessed the appearance of diode bars, packing around 100 diodes in a 1 cm bar which have enabled end and side pumped small solid state lasers at the few watt level of output. This paper describes the subsequent development of how proper cooling and stacking of bars enables the fabrication of multi kW average power diode pump arrays with irradiances of 1 kW/cm peak and 250 W/cm² average pump power. Since typical conversion efficiencies from the diode light to the pumped laser output light are of order 30% or more, kW average power diode pumped solid state lasers now are possible.

Citation Download Citation

Richard W. Solarz, George F. Albrecht, Raymond J. Beach, and Brian J. Comaskey "High-power diode-pumped solid state lasers", Proc. SPIE 1979, 1992 International Conference on Lasers and Optoelectronics, (11 May 1993); https://doi.org/10.1117/12.144107

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