Recent progress in fiber-coupled multi-mode pump module and broad-area laser-diode performance from 800-1500 nm

Vince Wong; Victor Rossin; Jay Skidmore; Prasad Yalamanchili; Xiangdong Qui; Richard Duesterberg; Pierre Doussiere; David Venables; Reddy Raju; James Guo; Michael Au; Laura Zavala; Matthew Peters; Guowen Yang; YuZhong Dai; Erik Zucker

doi:10.1117/12.809651

23 February 2009 Recent progress in fiber-coupled multi-mode pump module and broad-area laser-diode performance from 800-1500 nm

Vince Wong, Victor Rossin, Jay Skidmore, Prasad Yalamanchili, Xiangdong Qui, Richard Duesterberg, Pierre Doussiere, David Venables, Reddy Raju, James Guo, Michael Au, Laura Zavala, Matthew Peters, Guowen Yang, YuZhong Dai, Erik Zucker

Author Affiliations +

Proceedings Volume 7198, High-Power Diode Laser Technology and Applications VII; 71980S (2009) https://doi.org/10.1117/12.809651
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

We present performance improvements of fiber-coupled pump modules and broad-area lasers at 8xx nm, 9xx nm and 14xx nm wavelengths. Broad-area lasers with a 200 μm aperture at 808 nm for direct diode applications emit 11W CW and 30W pulsed. Pump modules at 830 nm for printing applications show excellent linearity, power stability of 2% and 95% of the power within 0.12 NA into a 50 μm core fiber at 1W CW. Broad-area lasers at 880 nm for pumping applications emit 18W CW with a peak wallplug efficiency of 64%. An improved design of 9xx pump modules is demonstrated with built-in feedback-protection (>30 dB at 1060 nm) that allows safe operation in multi-kW peak-power fiber lasers. Up to 3W of optical power with slope efficiency and peak wallplug efficiency of 0.64 W/A and 46%, respectively, is presented for 14xx nm broad-area lasers with a 100 μm wide aperture.

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Vince Wong, Victor Rossin, Jay Skidmore, Prasad Yalamanchili, Xiangdong Qui, Richard Duesterberg, Pierre Doussiere, David Venables, Reddy Raju, James Guo, Michael Au, Laura Zavala, Matthew Peters, Guowen Yang, YuZhong Dai, and Erik Zucker "Recent progress in fiber-coupled multi-mode pump module and broad-area laser-diode performance from 800-1500 nm", Proc. SPIE 7198, High-Power Diode Laser Technology and Applications VII, 71980S (23 February 2009); https://doi.org/10.1117/12.809651

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