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Efficient high power operation of a Tm-doped silica fiber laser pumped at 1.319 μm

✍ Scribed by P.S Golding; S.D Jackson; P.-K Tsai; B.C Dickinson; T.A King

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
150 KB
Volume
175
Category
Article
ISSN
0030-4018

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✦ Synopsis

Efficient cw and Q-switched operation of a Tm-doped silica fiber laser, pumped with the 1.319-mm output from a Nd:YAG laser, is described. An unsaturated continuous wave maximum output power of 310 mW and a slope efficiency of 23% was obtained for a near optimised cavity. A relatively low measured absorption cross section in conjunction with Ž . excited state absorption ESA of the pump light results in a minimum threshold pump power of 0.9 W. Q-switching by use of a mechanical chopper resulted in 16 Wr280 ns pulses at a repetition rate of 20 kHz.

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