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Proceedings Paper

2.3-kW continuous operation cryogenic Yb:YAG laser
Author(s): Jason K. Brasseur; Akheelesh K. Abeeluck; Andrew R. Awtry; Lei S. Meng; Kevin E. Shortoff; Nicholas J. Miller; Richard K. Hampton; Michael H. Cuchiara; David K. Neumann
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Paper Abstract

We present our recent developments in high-power, high-efficiency cryogenic Yb:YAG laser systems. Specifically, we will discuss our 2.3-kW master oscillator power amplifier (MOPA) which has shown optical wall-plug efficiencies above 30-% (diode-driver input to optical output). This laser system has been operated for long run times with continuous wave and pulsed output formats. The beam quality factor, M2, of the MOPA has been measured to be less than 2 and it is currently limited by the master oscillator. We are working to improve the device's beam quality and output power. In addition, we have demonstrated an all-cryogenic Yb:YAG laser that produced 29 W of optical power. Use of cryogenic diode laser pumps represents our next step towards achieving greater than 50% efficient high-power laser systems.

Paper Details

Date Published: 14 April 2008
PDF: 8 pages
Proc. SPIE 6952, Laser Source Technology for Defense and Security IV, 69520L (14 April 2008); doi: 10.1117/12.795269
Show Author Affiliations
Jason K. Brasseur, Directed Energy Solutions (United States)
Akheelesh K. Abeeluck, Directed Energy Solutions (United States)
Andrew R. Awtry, Directed Energy Solutions (United States)
Lei S. Meng, Directed Energy Solutions (United States)
Kevin E. Shortoff, Directed Energy Solutions (United States)
Nicholas J. Miller, Directed Energy Solutions (United States)
Richard K. Hampton, Directed Energy Solutions (United States)
Michael H. Cuchiara, Directed Energy Solutions (United States)
David K. Neumann, Directed Energy Solutions (United States)

Published in SPIE Proceedings Vol. 6952:
Laser Source Technology for Defense and Security IV
Mark Dubinskii; Gary L. Wood, Editor(s)

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