Investigation of optical losses in large-core metal-coated fibers in the 1.5–2μm spectral range
Investigation of optical losses in large-core metal-coated fibers in the 1.5–2μm spectral range
We investigate the excess optical loss in metal-coated passive and active silica optical fibers with different core diameters designed for single-mode to few-mode operation and compare their performance to that of conventional polymer-coated
fibers. This study aims to assess the effectiveness of metal coating on rare-earth-doped fibers for improved thermal management, which is essential for reliable operation and power scaling to the kW level of fiber lasers utilising the cladding
pump architecture, particularly in the eye-safe 1.55-2μm spectral range.
metal coating, rare earth doped fibers, fiber lasers, amplifiers
Choudhury, Nilotpal
db8333e6-bcf1-4e1d-9334-dd6caf5939b5
Yang, Qiubai
6a8b7823-dcef-40cd-b4f6-203e49697900
Ferriss, Jess
8807ccb9-59b7-4e4d-856b-1dc655c5d153
Airey, Mark
e703b756-d870-417f-afc6-a07b384f0f26
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
5 March 2026
Choudhury, Nilotpal
db8333e6-bcf1-4e1d-9334-dd6caf5939b5
Yang, Qiubai
6a8b7823-dcef-40cd-b4f6-203e49697900
Ferriss, Jess
8807ccb9-59b7-4e4d-856b-1dc655c5d153
Airey, Mark
e703b756-d870-417f-afc6-a07b384f0f26
Sahu, Jayanta
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Choudhury, Nilotpal, Yang, Qiubai, Ferriss, Jess, Airey, Mark and Sahu, Jayanta
(2026)
Investigation of optical losses in large-core metal-coated fibers in the 1.5–2μm spectral range.
4 pp
.
(doi:10.1117/12.3081835).
Record type:
Conference or Workshop Item
(Paper)
Abstract
We investigate the excess optical loss in metal-coated passive and active silica optical fibers with different core diameters designed for single-mode to few-mode operation and compare their performance to that of conventional polymer-coated
fibers. This study aims to assess the effectiveness of metal coating on rare-earth-doped fibers for improved thermal management, which is essential for reliable operation and power scaling to the kW level of fiber lasers utilising the cladding
pump architecture, particularly in the eye-safe 1.55-2μm spectral range.
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More information
Published date: 5 March 2026
Keywords:
metal coating, rare earth doped fibers, fiber lasers, amplifiers
Identifiers
Local EPrints ID: 510202
URI: http://eprints.soton.ac.uk/id/eprint/510202
PURE UUID: 0176c45a-7b5f-4f1c-84ba-b20142d52832
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Date deposited: 20 Mar 2026 17:45
Last modified: 21 Mar 2026 03:27
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Contributors
Author:
Nilotpal Choudhury
Author:
Qiubai Yang
Author:
Jess Ferriss
Author:
Mark Airey
Author:
Jayanta Sahu
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