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Proceedings Paper

70-Watt green laser with near diffraction-limited beam quality
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Paper Abstract

A 70-Watt green laser with M2<1.4 has been demonstrated. This green laser consists of an all-fiber-based IR pump laser at 1064 nm and a frequency-conversion module in a compact and flexible configuration. The IR laser produces up to 150 Watts in a polarized diffraction-limited output beam with high spectral brightness for frequency conversion. The IR laser is operating under QCW mode, e.g. 10 MHz with 3~5 ns pulse width or 700 MHz with 50 ps pulse width, to generate sufficient peak power for frequency doubling in the converter module. The IR laser and conversion module are connected via a 5-mm stainless-steel protected delivery fiber for optical beam delivery and an electrical cable harness for electrical power delivery and system control. Both the IR laser and converter module are run through embedded software that controls laser operations such as warm up and shut down. System overview and full characterization results will be presented. Such a high power green laser with near diffraction-limited output in a compact configuration will enable various scientific as well as industrial applications.

Paper Details

Date Published: 23 February 2009
PDF: 9 pages
Proc. SPIE 7197, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII, 719705 (23 February 2009); doi: 10.1117/12.809294
Show Author Affiliations
Dan Hu, Lockheed Martin Aculight (United States)
Eric Eisenberg, Lockheed Martin Aculight (United States)
Pratheepan Madasamy, Lockheed Martin Aculight (United States)
Roy Mead, Lockheed Martin Aculight (United States)
Eric Honea, Lockheed Martin Aculight (United States)


Published in SPIE Proceedings Vol. 7197:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII
Peter E. Powers, Editor(s)

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