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14 February 2019 All-fiber-integrated and spectrally flat 2-5μm supercontinuum generation in InF3 fiber with high conversion efficiency
Linyong Yang, Bin Zhang, Zehua Xu, Donghuan Jin, Tianyi Wu, Xuan He, Yijun Zhao, Jing Hou
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Proceedings Volume 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018); 110484W (2019) https://doi.org/10.1117/12.2523012
Event: 17th International Conference on Optical Communications and Networks (ICOCN2018), 2018, Zhuhai, China
Abstract
A strictly-all-fiberized 2 to 5 μm supercontinuum (SC) laser source with high conversion efficiency is demonstrated. A broadband thulium-doped fiber amplifier with spectral coverage of 2-2.7 μm is used to pump a piece of single-mode fluoroindate (InF3) fiber. A fusion spliced joint with loss down to 0.07 dB is achieved between a piece of silica fiber and the InF3 fiber, which keeps all-fiber structure and efficient pump power coupling. A 1.35-W SC with spectral coverage of 1.5-5.2 μm is obtained with a record power conversion efficiency of 59.5%. This research, to the best of the authors' knowledge, demonstrates the first all-fiber-integrated of InF3-fiber-based MIR-SC laser sources to date.
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Linyong Yang, Bin Zhang, Zehua Xu, Donghuan Jin, Tianyi Wu, Xuan He, Yijun Zhao, and Jing Hou "All-fiber-integrated and spectrally flat 2-5μm supercontinuum generation in InF3 fiber with high conversion efficiency", Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 110484W (14 February 2019); https://doi.org/10.1117/12.2523012
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KEYWORDS
Laser sources
Fusion splicing
Fiber amplifiers
Supercontinuum generation
Pulsed laser operation
ZBLAN
Optical fibers
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