Low-loss fused silica hollow-core fiber delivery of mid-infrared light at 6-µm
Low-loss fused silica hollow-core fiber delivery of mid-infrared light at 6-µm
Mid-infrared (MIR) lasers at a wavelength of ~6 µm are extremely valuable for medical, chemical, and industrial, applications. In particular, they have been shown to be in the optimal wavelength region to minimize collateral damage in soft tissue ablation using free-electron lasers [1]. Quantum cascade lasers (QCLs) are a potentially superior alternative, being simpler, more compact, and lower cost. However, as the silica glass used in traditional optical fibers is opaque at these wavelengths, it is difficult to find flexible, low-loss, single-mode fiber delivery solutions, limiting the use of these wavelengths in applications. Silica hollow-core fibers (HCFs) are a very attractive solution as they combine the maturity of silica fiber fabrication techniques with hollow-core transmission [2]. Previously Kolyadin et al reported an 8-capillary silica HCF guiding light up to 7.9 μm but with a loss of >20 dB/m at ~6 μm [3].
Fu, Qiang
b01fb880-ccd2-4acb-8d08-0a9668bed6e6
Davidson, Ian A.
b685f949-e9e4-4e6b-9a59-36739de06a61
Jasion, Gregory T.
16cfff1d-d178-41d1-a092-56e6239726b8
Xu, Lin
b887cecd-d21e-49f4-9b45-6909a7369e84
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Wheeler, Natalie V.
0fd34178-a77b-4c71-a3a6-86a1f634f1a0
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
4 September 2023
Fu, Qiang
b01fb880-ccd2-4acb-8d08-0a9668bed6e6
Davidson, Ian A.
b685f949-e9e4-4e6b-9a59-36739de06a61
Jasion, Gregory T.
16cfff1d-d178-41d1-a092-56e6239726b8
Xu, Lin
b887cecd-d21e-49f4-9b45-6909a7369e84
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Wheeler, Natalie V.
0fd34178-a77b-4c71-a3a6-86a1f634f1a0
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Fu, Qiang, Davidson, Ian A., Jasion, Gregory T., Xu, Lin, Poletti, Francesco, Wheeler, Natalie V. and Richardson, David J.
(2023)
Low-loss fused silica hollow-core fiber delivery of mid-infrared light at 6-µm.
In 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023.
IEEE.
1 pp
.
(doi:10.1109/CLEO/EUROPE-EQEC57999.2023.10231907).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Mid-infrared (MIR) lasers at a wavelength of ~6 µm are extremely valuable for medical, chemical, and industrial, applications. In particular, they have been shown to be in the optimal wavelength region to minimize collateral damage in soft tissue ablation using free-electron lasers [1]. Quantum cascade lasers (QCLs) are a potentially superior alternative, being simpler, more compact, and lower cost. However, as the silica glass used in traditional optical fibers is opaque at these wavelengths, it is difficult to find flexible, low-loss, single-mode fiber delivery solutions, limiting the use of these wavelengths in applications. Silica hollow-core fibers (HCFs) are a very attractive solution as they combine the maturity of silica fiber fabrication techniques with hollow-core transmission [2]. Previously Kolyadin et al reported an 8-capillary silica HCF guiding light up to 7.9 μm but with a loss of >20 dB/m at ~6 μm [3].
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Published date: 4 September 2023
Venue - Dates:
2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023, , Munich, Germany, 2023-06-26 - 2023-06-30
Identifiers
Local EPrints ID: 502761
URI: http://eprints.soton.ac.uk/id/eprint/502761
PURE UUID: f280568d-98b1-482e-b4c8-7603b5021ec8
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Date deposited: 08 Jul 2025 16:32
Last modified: 09 Jul 2025 01:46
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