Directly diode-pumped holmium fiber lasers
S.D. Jackson1, F. Bugge2, G. Erbert2
Published in:
Opt. Lett., vol. 32, no. 17, pp. 2496-2498 (2007).
Abstract:
Sensitizer-free holmium-doped silica and fluoride mid-infrared fiber lasers are pumped using a high-power diode laser operating at 1148 nm. A maximum output power of 162 mW at 2.86 µm was produced at a slope efficiency of 24% using Ho3+, Pr3+-doped fluoride fiber. Using Ho3+-doped silica fiber, a maximum output power of 55 mW at 2.1 µm was generated at a slope efficiency of 27%, a value limited by the presence of pump excited state absorption.
1 Optical Fibre Technology Centre, University of Sydney, 206 National Innovation Centre, Australian Technology Park, Eveleigh, 1430 Australia
2 Ferdinand-Braun-Institut für Höchstfrequenztechnik, D-12489 Berlin, Germany
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