Barnes, W.L. and Townsend, J.E.
Highly tunable and efficient diode pumped operation of Tm3+ doped fibre lasers
Electronics Letters, 26, (11), . (doi:10.1049/el:19900487).
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The characteristics of a Tm3+ doped fibre laser pumped by a laser diode are reported. Operating at a wavelength of 1.94µm the laser had a threshold of 4.4mW, a launched power slope efficiency of 17% and 1 mW output power. Measurements on the tuning rang of Tm3+ are presented and lasing is found to be possible from 1.65-2.0µm, the specific range depending on the fibre type. The largest range for a single laser was 300nm.
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