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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
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.
amplifiers, fiber lasers, metal coating, rare earth doped fibers, Metal coating, Amplifiers, Rare earth doped fibers, Fiber lasers
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
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: amplifiers, fiber lasers, metal coating, rare earth doped fibers, Metal coating, Amplifiers, Rare earth doped fibers, Fiber lasers

Identifiers

Local EPrints ID: 510202
URI: http://eprints.soton.ac.uk/id/eprint/510202
DOI: doi:10.1117/12.3081835
PURE UUID: 0176c45a-7b5f-4f1c-84ba-b20142d52832
ORCID for Nilotpal Choudhury: ORCID iD orcid.org/0000-0003-2695-5684
ORCID for Jayanta Sahu: ORCID iD orcid.org/0000-0003-3560-6152

Catalogue record

Date deposited: 20 Mar 2026 17:45
Last modified: 04 Jun 2026 02:10

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Contributors

Author: Nilotpal Choudhury ORCID iD
Author: Qiubai Yang
Author: Jess Ferriss
Author: Mark Airey
Author: Jayanta Sahu ORCID iD

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