Applied Physics B

, Volume 84, Issue 3, pp 389–393

A power-scaling strategy for longitudinally diode-pumped Tm:YLF lasers

  • S. So
  • J.I. Mackenzie
  • D.P. Shepherd
  • W.A. Clarkson
  • J.G. Betterton
  • E.K. Gorton
Article

DOI: 10.1007/s00340-006-2286-y

Cite this article as:
So, S., Mackenzie, J., Shepherd, D. et al. Appl. Phys. B (2006) 84: 389. doi:10.1007/s00340-006-2286-y

Abstract

We describe a power-scaling strategy for longitudinally diode-pumped Tm:YLF lasers based on optimisation of the thulium doping level and the gain geometry. Carefully designed laser experiments at lower powers are shown to allow a simple means for accurately predicting the thermal loading and hence the power-scaling properties of this system, including the effects of ground-state depletion, cross relaxation and energy-transfer upconversion. An optimised doping level of 2 at. % and a slab geometry are shown experimentally to allow scaling of a single gain unit to output powers of ∼70 W, limited by the available pump power, and a strategy for scaling well beyond 100-W output is discussed.

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • S. So
    • 1
  • J.I. Mackenzie
    • 1
  • D.P. Shepherd
    • 1
  • W.A. Clarkson
    • 1
  • J.G. Betterton
    • 2
  • E.K. Gorton
    • 2
  1. 1.Optoelectronics Research CentreUniversity of SouthamptonSouthamptonUK
  2. 2.QinetiQMalvernUK

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