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23 February 2009 A high power high-brightness multi-single-emitter laser pump platform
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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.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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);


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