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High power Cr4+:YAG laser pumped Er3+ fibre laser and amplifier

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4 Author(s)
Y. P. Tong ; Dept. of Phys., Imperial Coll. of Sci. Technol. & Med., London ; K. Rottwitt ; P. M. W. French ; J. R. Taylor

A compact Cr4+:YAG tunable solid state laser pump source operating broadly around 1.48 μm has been used to pump an Er 3+ fibre laser and amplifier. The laser exhibited a 55% slope efficiency and output powers in excess of 21 dBm. At 1.55 μm, the amplifier had a measured gain of 25 dB for a launched pump power of 23.6 dBm. Increased power scaling should be readily achieved

Published in:

Electronics Letters  (Volume:31 ,  Issue: 20 )