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Photodarkening in Yb-doped aluminosilicate fibers induced by 488 nm irradiation

Photodarkening in Yb-doped aluminosilicate fibers induced by 488 nm irradiation
Photodarkening in Yb-doped aluminosilicate fibers induced by 488 nm irradiation
Photodarkening of Yb-doped aluminosilicate fibers by continuous wave 488 nm irradiation was investigated. The irradiation induced significant excess loss in the UV-visible spectroscopy (VIS) region in Yb-doped aluminosilicate fibers while pure aluminosilicate fibers showed negligible induced loss. Ultraviolet-VIS-near infrared spectroscopy revealed an absorption peak at 220 nm in unexposed Yb-doped aluminosilicate fiber preforms. The observed peak was attributed to Yb-associated oxygen deficiency centers (ODCs) and proposed as a precursor of the photodarkening. The proposed model was supported by measurements on oxygen loaded Yb-doped aluminosilicate fibers. In these, the photodarkening could be significantly reduced, which we attribute to a smaller number of ODCs following oxygen loading.
0146-9592
1626-1628
Yoo, S.
4714ed34-2088-4d00-a4bb-9d153384c36e
Basu, C.
f49c6c8a-3e64-494d-9f9b-acc2b2e15907
Boyland, A.J.
e6e842e6-0fe6-4de2-a9b8-ca44f30ab4d5
Sones, C.L.
9de9d8ee-d394-46a5-80b7-e341c0eed0a8
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d
Yoo, S.
4714ed34-2088-4d00-a4bb-9d153384c36e
Basu, C.
f49c6c8a-3e64-494d-9f9b-acc2b2e15907
Boyland, A.J.
e6e842e6-0fe6-4de2-a9b8-ca44f30ab4d5
Sones, C.L.
9de9d8ee-d394-46a5-80b7-e341c0eed0a8
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Payne, D.N.
4f592b24-707f-456e-b2c6-8a6f750e296d

Yoo, S., Basu, C., Boyland, A.J., Sones, C.L., Nilsson, J., Sahu, J.K. and Payne, D.N. (2007) Photodarkening in Yb-doped aluminosilicate fibers induced by 488 nm irradiation Optics Letters, 32, (12), pp. 1626-1628. (doi:10.1364/OL.32.001626).

Record type: Article

Abstract

Photodarkening of Yb-doped aluminosilicate fibers by continuous wave 488 nm irradiation was investigated. The irradiation induced significant excess loss in the UV-visible spectroscopy (VIS) region in Yb-doped aluminosilicate fibers while pure aluminosilicate fibers showed negligible induced loss. Ultraviolet-VIS-near infrared spectroscopy revealed an absorption peak at 220 nm in unexposed Yb-doped aluminosilicate fiber preforms. The observed peak was attributed to Yb-associated oxygen deficiency centers (ODCs) and proposed as a precursor of the photodarkening. The proposed model was supported by measurements on oxygen loaded Yb-doped aluminosilicate fibers. In these, the photodarkening could be significantly reduced, which we attribute to a smaller number of ODCs following oxygen loading.

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Published date: June 2007

Identifiers

Local EPrints ID: 49795
URI: http://eprints.soton.ac.uk/id/eprint/49795
ISSN: 0146-9592
PURE UUID: 0e7d1b4f-506b-4342-8d36-459c6fef81df
ORCID for J. Nilsson: ORCID iD orcid.org/0000-0003-1691-7959

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Date deposited: 03 Dec 2007
Last modified: 02 Nov 2017 17:32

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Contributors

Author: S. Yoo
Author: C. Basu
Author: A.J. Boyland
Author: C.L. Sones
Author: J. Nilsson ORCID iD
Author: J.K. Sahu
Author: D.N. Payne

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