Next-generation high-power, high-efficiency diode lasers at Spectra-Physics

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

doi:10.1117/12.754803

7 January 2008 Next-generation high-power, high-efficiency diode lasers at Spectra-Physics

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

Author Affiliations +

Proceedings Volume 6824, Semiconductor Lasers and Applications III; 68240S (2008) https://doi.org/10.1117/12.754803
Event: Photonics Asia 2007, 2007, Beijing, China

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.

Citation Download Citation

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, and James Harrison "Next-generation high-power, high-efficiency diode lasers at Spectra-Physics", Proc. SPIE 6824, Semiconductor Lasers and Applications III, 68240S (7 January 2008); https://doi.org/10.1117/12.754803

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