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  • Asia Communications and Photonics Conference/International Conference on Information Photonics and Optical Communications 2020 (ACP/IPOC)
  • OSA Technical Digest (Optica Publishing Group, 2020),
  • paper M4A.111
  • https://doi.org/10.1364/ACPC.2020.M4A.111

Influence of buffer gas on the absorption characteristics of CO2 in hollow-core fibers

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Abstract

Recently, we have reported a 4.3 μm fiber laser based on CO2-filled hollow-core fibers, however, the linewidth of the pump laser will become wider with the pump power increasing, resulting in the absorption decreasing of CO2. Here, we firstly study the influence of buffer gas on the absorption characteristics of CO2 in hollow-core fibers, paving the way toward high-power mid-IR fiber gas lasers.

© 2020 The Author(s)

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