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Conferences > ACPC > 2020 > T2A > T2A.3
  • Asia Communications and Photonics Conference/International Conference on Information Photonics and Optical Communications 2020 (ACP/IPOC)
  • OSA Technical Digest (Optica Publishing Group, 2020),
  • paper T2A.3
  • •https://doi.org/10.1364/ACPC.2020.T2A.3

4 μm HBr Fiber Gas Laser

Zefeng Wang, Zhiyue Zhou, Hao Li, Yulong Cui, and Wei Huang

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Abstract

We report here a 4 μm fiber laser in HBr-filled silica hollow-core fibers (HCFs). Pumped by a 2 μm thulium–doped fiber amplifier (TDFA), a maximum 4 μm power of ~350 mW is achieved with a conversion efficiency of about 10%. Furthermore, this system could be extended to generate widely tunable wavelength range up to 4.5 µm by using a small-range tunable 2 µm pump fiber laser, which will open a new opportunity for mid-IR fiber lasers.

© 2020 The Author(s)

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