Compact and efficient DPSS laser using diamond-cooled technology

Hsian Pei Chou; Yu-Lin Wang; Victor H. Hasson

doi:10.1117/12.548427

20 September 2004 Compact and efficient DPSS laser using diamond-cooled technology

Hsian Pei Chou, Yu-Lin Wang, Victor H. Hasson

Proceedings Volume 5448, High-Power Laser Ablation V; (2004) https://doi.org/10.1117/12.548427
Event: High-Power Laser Ablation, 2004, Taos, New Mexico, United States

Abstract

In this paper, we summarize the performance of a diamond cooled diode pumped solid state (DPSS) Nd:YAG laser developed by Textron Systems Corporation (TCS). Over 50% intrinsic extraction efficiency at 50-Watts average power, equivalent to volumetric power extraction of 2000 W/cc, has been experimentally demonstrated. Beam quality (BQ) of less than 1.1 XDL has been measured in an oscillator configuration with the laser operating in TEM₀₀ mode. With a simple passive thermal lens correction, BQ of less than 1.5 XDL was obtained from an oscillator amplifier arrangement at specific pump rates up to 1600 W/cc and 600 W/cc, respectively. By using an intra-cavity acousto-optic modulator, Q-switched laser pulses as short as 6 ns were obtained from the oscillator. This concept is amenable to scaling up to very high power levels. A conceptual design, using our validated database, for a 100-kW class laser is also presented.

Citation Download Citation

Hsian Pei Chou, Yu-Lin Wang, and Victor H. Hasson "Compact and efficient DPSS laser using diamond-cooled technology", Proc. SPIE 5448, High-Power Laser Ablation V, (20 September 2004); https://doi.org/10.1117/12.548427

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