A high power high-brightness multi-single-emitter laser pump platform

Xiangdong Qiu; YuZhong Dai; Michael Au; James Guo; Vince Wong; Victor Rossin; David Venables; Jay Skidmore; Erik Zucker

doi:10.1117/12.809671

23 February 2009 A high power high-brightness multi-single-emitter laser pump platform

Xiangdong Qiu, YuZhong Dai, Michael Au, James Guo, Vince Wong, Victor Rossin, David Venables, Jay Skidmore, Erik Zucker

Proceedings Volume 7198, High-Power Diode Laser Technology and Applications VII; 71980Z (2009) https://doi.org/10.1117/12.809671
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

A platform has been developed for high-power, high-brightness, multi-single-emitter laser pumps for fiber lasers, directdiode, and other applications. Using multi-mode fiber with 105μm core and 0.22 NA, fiber-coupled optical power up to 100 Watts and a brightness as high as 100 kW/mm²/sr can be achieved. Common schemes for increasing brightness include spatial, wavelength, and polarization-beam combination of multiple single-emitters. Spatial multiplexing has been chosen for this platform to leverage JDSU's proven reliability of highpower single-emitter packages and passive optical components. In one configuration, we achieved >60W fiber coupled optical power, 50 kW/mm²/sr, and 45% wall-plug-efficiency using 105 μm core, 0.22 NA fiber from this platform. An optional VBG can also be placed inside the package for achieving spectral locking over a 16 nm wavelength range.

Citation Download Citation

Xiangdong Qiu, YuZhong Dai, Michael Au, James Guo, Vince Wong, Victor Rossin, David Venables, Jay Skidmore, and Erik Zucker "A high power high-brightness multi-single-emitter laser pump platform", Proc. SPIE 7198, High-Power Diode Laser Technology and Applications VII, 71980Z (23 February 2009); https://doi.org/10.1117/12.809671

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