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Crystalline GaSb-core optical fibers with room-temperature photoluminescence

Crystalline GaSb-core optical fibers with room-temperature photoluminescence
Crystalline GaSb-core optical fibers with room-temperature photoluminescence
Glass-clad, GaSb-core fibers were drawn and subsequently laser annealed. The as-drawn fibers were found to be polycrystalline, possess Sb inclusions, and have oxide contamination concentrations of less than 3 at%. Melting and resolidifying regions in the cores using 10.6 µm CO2 laser radiation yielded single crystalline zones with enhanced photoluminescence (PL), including the first observation of strong room temperature PL from a crystalline core fiber. Annealed fibers show low values of tensile strain and a bandgap close to that of bulk GaSb.
1435-1440
Song, S.
d9e1133d-16d4-49f9-970c-7d71f401efa8
Healy, N.
26eec85c-8d12-4f21-a67a-022f8dc2daab
Svendsen, S.K.
b19e5d85-7228-4c5f-98fe-87f0bca019dc
Österberg, U.L.
1e107a78-a3b0-4940-8804-a854245dd401
Cuervo Covian, A.V.
6ab28d28-fcb0-494c-b557-24866b9fe176
Liu, J.
35dfb51f-f081-4255-ad63-e34a12318a71
Peacock, A.C.
685d924c-ef6b-401b-a0bd-acf1f8e758fc
Ballato, J.
ddce73a2-caf3-46b3-ae09-41b5200f03e9
Laurell, F.
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Fokine, M.
fb6ef706-b6fc-4aab-a295-b41f6561c7c8
Gibson, U.J.
3461e1f4-9306-41bc-8778-7ac46adfe47f
Song, S.
d9e1133d-16d4-49f9-970c-7d71f401efa8
Healy, N.
26eec85c-8d12-4f21-a67a-022f8dc2daab
Svendsen, S.K.
b19e5d85-7228-4c5f-98fe-87f0bca019dc
Österberg, U.L.
1e107a78-a3b0-4940-8804-a854245dd401
Cuervo Covian, A.V.
6ab28d28-fcb0-494c-b557-24866b9fe176
Liu, J.
35dfb51f-f081-4255-ad63-e34a12318a71
Peacock, A.C.
685d924c-ef6b-401b-a0bd-acf1f8e758fc
Ballato, J.
ddce73a2-caf3-46b3-ae09-41b5200f03e9
Laurell, F.
55a78593-4764-47ab-9548-72bb2ddde06a
Fokine, M.
fb6ef706-b6fc-4aab-a295-b41f6561c7c8
Gibson, U.J.
3461e1f4-9306-41bc-8778-7ac46adfe47f

Song, S., Healy, N., Svendsen, S.K., Österberg, U.L., Cuervo Covian, A.V., Liu, J., Peacock, A.C., Ballato, J., Laurell, F., Fokine, M. and Gibson, U.J. (2018) Crystalline GaSb-core optical fibers with room-temperature photoluminescence. Optical Materials Express, 8 (6), 1435-1440. (doi:10.1364/OME.8.001435).

Record type: Article

Abstract

Glass-clad, GaSb-core fibers were drawn and subsequently laser annealed. The as-drawn fibers were found to be polycrystalline, possess Sb inclusions, and have oxide contamination concentrations of less than 3 at%. Melting and resolidifying regions in the cores using 10.6 µm CO2 laser radiation yielded single crystalline zones with enhanced photoluminescence (PL), including the first observation of strong room temperature PL from a crystalline core fiber. Annealed fibers show low values of tensile strain and a bandgap close to that of bulk GaSb.

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GaSb_fiber_NTNU_OME_2018 - Accepted Manuscript
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More information

Accepted/In Press date: 28 April 2018
e-pub ahead of print date: 3 May 2018
Published date: June 2018

Identifiers

Local EPrints ID: 420492
URI: https://eprints.soton.ac.uk/id/eprint/420492
PURE UUID: ee522886-d033-48bf-9a8e-7f8d67266485
ORCID for A.C. Peacock: ORCID iD orcid.org/0000-0002-1940-7172

Catalogue record

Date deposited: 09 May 2018 16:30
Last modified: 10 Dec 2019 01:46

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