High-efficiency CW thulium-sensitised holmium-doped fluoride fibre laser operating at 2.04 μm

15 August 1991

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 27 (17) , 1513-1515
https://doi.org/10.1049/el:19910951

Abstract

Laser oscillation at 2.04 μm has been observed in a thulium-sensitised holmium doped singlemode fluorozirconate fibre. 52% slope efficiency and 250 mW output power were obtained with a pump at 0.82 μm. Crossrelaxation in thulium gives a pump quantum efficiency of 1.30.

Keywords

SLOPE EFFICIENCY
250 MW
PUMP QUANTUM EFFICIENCY
ZRF4-BAF2-LAF3-ALF3-NAF:TM
130 PERCENT
52 PERCENT
OUTPUT POWER
2.04 MICRON
SINGLE-MODE FIBRE
0.82 MICRON
CROSS RELAXATION

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