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Proceedings Paper

Next-generation high-power, high-efficiency diode lasers at Spectra-Physics
Author(s): Hanxuan Li; Irving Chyr; Denny Brown; Frank Reinhardt; Oscar Romero; Chia-Hung Chen; Robert Miller; Kiran Kuppuswamy; Xu Jin; Touyen Ngugen; Terry Towe; Trevor Crum; Cameron Mitchell; Tom Truchan; Robert Bullock; Ed Wolak; Jeff Mott; James Harrison
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Paper Abstract

This paper gives an overview of recent product development and advanced engineering of diode laser technology at Spectra-Physics. Focused development of device design, heat-sinking and beam-conditioning has yielded significant improvement in both power conversion efficiency (PCE) and reliable power, leading to a family of new products. CW PCEs of 60% to 70% have been delivered for the 880 to 980 nm wavelength range. For 780 to 810 nm, PCE are typically between 50% and 56%. Comprehensive life-testing indicates that the reliable powers of devices based on the new developments exceed those of established, highly reliable, production designs. For the progress of ultra-high power bars, CW output power in excess of 1000 W and 640 W have been demonstrated from single laser bars with doubled-side and single-side cooling, respectively. Spatial power density of greater than 2.8 kW/cm2 and FWHM spectral widths of 3.5 nm have been obtained from laser stacks.

Paper Details

Date Published: 7 January 2008
PDF: 12 pages
Proc. SPIE 6824, Semiconductor Lasers and Applications III, 68240S (7 January 2008); doi: 10.1117/12.754803
Show Author Affiliations
Hanxuan Li, Spectra-Physics Lasers (United States)
Irving Chyr, Spectra-Physics Lasers (United States)
Denny Brown, Spectra-Physics Lasers (United States)
Frank Reinhardt, Spectra-Physics Lasers (United States)
Oscar Romero, Spectra-Physics Lasers (United States)
Chia-Hung Chen, Spectra-Physics Lasers (United States)
Robert Miller, Spectra-Physics Lasers (United States)
Kiran Kuppuswamy, Spectra-Physics Lasers (United States)
Xu Jin, Spectra-Physics Lasers (United States)
Touyen Ngugen, Spectra-Physics Lasers (United States)
Terry Towe, Spectra-Physics Lasers (United States)
Trevor Crum, Spectra-Physics Lasers (United States)
Cameron Mitchell, Spectra-Physics Lasers (United States)
Tom Truchan, Spectra-Physics Lasers (United States)
Robert Bullock, Spectra-Physics Lasers (United States)
Ed Wolak, Spectra-Physics Lasers (United States)
Jeff Mott, Spectra-Physics Lasers (United States)
James Harrison, Spectra-Physics Lasers (United States)


Published in SPIE Proceedings Vol. 6824:
Semiconductor Lasers and Applications III
Lianghui Chen; Hiroyuki Suzuki; Paul T. Rudy; Ninghua Zhu, Editor(s)

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