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Proceedings Article

High-power 2-μm Tm3+-doped fibre lasers

[+] Author Affiliations
Gavin P. Frith, David G. Lancaster

Defence Science and Technology Organisation (Australia)

Stuart D. Jackson

Univ. of Sydney (Australia)

Proc. SPIE 5620, Solid State Laser Technologies and Femtosecond Phenomena, 36 (December 23, 2004); doi:10.1117/12.580042
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From Conference Volume 5620

  • Solid State Laser Technologies and Femtosecond Phenomena
  • Jonathan A. C. Terry; W. Andrew Clarkson
  • London, United Kingdom | October 25, 2004

abstract

Using Tm3+-doped double-clad silica fibre we have produced high power, high efficiency 2μm lasers. To date we have achieved a 59% slope efficiency relative to launched pump power using single end pumping and double passing the pump light. By pumping the fibre laser from both ends, we achieved up to 118W peak output power with 54% slope efficiency relative to launched power at 25% duty cycle. The quantum efficiency of this laser was 120% relative to launched pump power, which we attribute to a cross-relaxation process in Tm3+ (3H4,3H63F4,3F4). We have also demonstrated fixed wavelength operation of the laser near 1.9μm by using fibre Bragg gratings.

© (2004) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Gavin P. Frith ; David G. Lancaster and Stuart D. Jackson
"High-power 2-μm Tm3+-doped fibre lasers", Proc. SPIE 5620, Solid State Laser Technologies and Femtosecond Phenomena, 36 (December 23, 2004); doi:10.1117/12.580042; http://dx.doi.org/10.1117/12.580042


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