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  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 2001),
  • paper CThV3

Tm:glass fiber laser pumping Ho:YAG and Ho:LuAG

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Abstract

Continuous Ho:YAG and HorLuAG lasers were pumped by a laser diode pumped Tm:glass fiber. Slope efficiencies achieved were comparable with the product of the fraction of the pump power absorbed and the quantum defect. This laser combines several important ingredients including: beam shaping of the laser diode bars for efficient coupling to the Tm:glass fiber, double clad fiber providing good pump absorption and beam quality, fiber laser output tunable to a Ho absorption peak, and long upper laser level lifetime in a laser material containing only Ho, thus minimizing any detrimental up conversion.

© 2001 Optical Society of America

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