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Mid-infrared fluoride fiber lasers in multiple cascade operation

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1 Author(s)
Schneider, J. ; Inst. fur Hochfrequenztech., Tech. Univ. Braunschweig, Germany

CW fiber laser cascades in an Er/sup 3+/-doped fluorozirconate fiber operating simultaneously at 2.7 μm/1.55 μm or at 3.45 μm/2.7 μm/1.55 μm pumped around 650 nm are reported. Output powers of nearly 20 mW at 1.55 μm and 1.2 mW around 2.7 μm were obtained with a nonoptimized experimental setup for the 2.7 μm/1.55 μm cascade. At 1.55 μm a laser efficiency of 5% was achieved. By varying the parameters of the experimental setup, additional effective simultaneous laser action at 3.45 μm was demonstrated.

Published in:

Photonics Technology Letters, IEEE  (Volume:7 ,  Issue: 4 )