Heavily Tm super(3+)-doped silicate fiber with high gain per unit length

We present the experimental investigation of a single-mode double-clad Tm super(3+)-doped silicate fiber with ion concentration of 7 wt.% (8.35 x 10 super(20)/cm super(3)). A gain per unit length of 5.8 dB/cm at 1945 nm has been successfully achieved in a 3-cm Tm super(3+)-doped silicate fiber ampli...

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Bibliographic Details
Published in:Optical materials express 2015-03, Vol.5 (3), p.549-557
Main Authors: Lee, Yin-Wen, Ling, Hao-Yu, Lin, Yin-Hsiang, Jiang, Shibin
Format: Article
Language:English
Subjects:
Amplification
Fiber lasers
Fibers
Gain
High gain
Ion concentration
Noise levels
Silicates
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Summary:We present the experimental investigation of a single-mode double-clad Tm super(3+)-doped silicate fiber with ion concentration of 7 wt.% (8.35 x 10 super(20)/cm super(3)). A gain per unit length of 5.8 dB/cm at 1945 nm has been successfully achieved in a 3-cm Tm super(3+)-doped silicate fiber amplifier, pumped with 647.6 mW at 1567 nm. To the best of our knowledge, this would be the highest gain per unit length reported for Tm super(3+)-doped fibers. Furthermore, we experimentally demonstrate efficient cm-long fiber lasers and watt-level cladding pumped Tm super(3+)-doped silicate fiber amplifiers.
ISSN:2159-3930
2159-3930
DOI:10.1364/OME.5.000549