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Oxyfluoride core silica-based optical fiber with intrinsically low nonlinearities for high energy laser applications

Oxyfluoride core silica-based optical fiber with intrinsically low nonlinearities for high energy laser applications
Oxyfluoride core silica-based optical fiber with intrinsically low nonlinearities for high energy laser applications
A few-moded silica-based optical fiber fabricated from core materials that possess intrinsically low optical nonlinearities is reported. Specifically, the 8 μm core, 125 μm cladding diameter silicate fiber was composed of a strontium aluminosilicate oxyfluoride core with a fused silica cladding and was fabricated using the molten core method. Relative to conventional optical fibers, reductions of ∼6.3 dB in Brillouin gain coefficient (gB), ∼0.9 dB in Raman gain coefficient (gR), and ∼2.2 dB in thermo-optic coefficient (TOC) were realized as was a “silica-like” nonlinear refractive index (n2) with a value of ∼3x10−20 m2/W. The role of each core material constituent on parameters that drive optical nonlinearities is discussed to provide a materials solution route for low nonlinearity fiber systems. Materially addressing optical nonlinearities represents a simpler and more effective approach to mitigating power-scaling limits in high energy fiber laser systems compared to the geometric approaches employed using microstructured fibers.
0733-8724
Cavillon, M.
771d49a9-9401-4c75-8291-ce5ad8103ee7
Kucera, C.J
28642b1c-c301-4e35-81bf-1443220f991f
Hawkins, T.W
2df92237-0739-4cfe-a0f3-dd96d8f1713e
Runge, A.F.J.
874cec37-209b-4c7a-97a5-56d05596dd2b
Peacock, A.C.
685d924c-ef6b-401b-a0bd-acf1f8e758fc
Dragic, P.D
27c9326c-9e5e-457b-adc3-c6435310d535
Ballato, J.
ddce73a2-caf3-46b3-ae09-41b5200f03e9
Cavillon, M.
771d49a9-9401-4c75-8291-ce5ad8103ee7
Kucera, C.J
28642b1c-c301-4e35-81bf-1443220f991f
Hawkins, T.W
2df92237-0739-4cfe-a0f3-dd96d8f1713e
Runge, A.F.J.
874cec37-209b-4c7a-97a5-56d05596dd2b
Peacock, A.C.
685d924c-ef6b-401b-a0bd-acf1f8e758fc
Dragic, P.D
27c9326c-9e5e-457b-adc3-c6435310d535
Ballato, J.
ddce73a2-caf3-46b3-ae09-41b5200f03e9

Cavillon, M., Kucera, C.J, Hawkins, T.W, Runge, A.F.J., Peacock, A.C., Dragic, P.D and Ballato, J. (2017) Oxyfluoride core silica-based optical fiber with intrinsically low nonlinearities for high energy laser applications. IEEE Journal of Lightwave Technology. (doi:10.1109/JLT.2017.2731602).

Record type: Article

Abstract

A few-moded silica-based optical fiber fabricated from core materials that possess intrinsically low optical nonlinearities is reported. Specifically, the 8 μm core, 125 μm cladding diameter silicate fiber was composed of a strontium aluminosilicate oxyfluoride core with a fused silica cladding and was fabricated using the molten core method. Relative to conventional optical fibers, reductions of ∼6.3 dB in Brillouin gain coefficient (gB), ∼0.9 dB in Raman gain coefficient (gR), and ∼2.2 dB in thermo-optic coefficient (TOC) were realized as was a “silica-like” nonlinear refractive index (n2) with a value of ∼3x10−20 m2/W. The role of each core material constituent on parameters that drive optical nonlinearities is discussed to provide a materials solution route for low nonlinearity fiber systems. Materially addressing optical nonlinearities represents a simpler and more effective approach to mitigating power-scaling limits in high energy fiber laser systems compared to the geometric approaches employed using microstructured fibers.

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Oxyfluoride core silica-based optical fiber with intrinsically low nonlinearities for high energy laser applications - Accepted Manuscript
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Accepted/In Press date: 24 July 2017
e-pub ahead of print date: 26 July 2017

Identifiers

Local EPrints ID: 414776
URI: https://eprints.soton.ac.uk/id/eprint/414776
ISSN: 0733-8724
PURE UUID: 4454cca6-3345-465f-bc8a-4eee4c6449ed
ORCID for A.C. Peacock: ORCID iD orcid.org/0000-0002-1940-7172

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Date deposited: 11 Oct 2017 16:31
Last modified: 15 Jul 2019 17:51

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