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Infrared-induced photodarkening in Tm-doped fluoride fibres

Infrared-induced photodarkening in Tm-doped fluoride fibres
Infrared-induced photodarkening in Tm-doped fluoride fibres
We have observed a new type of infrared-induced photodarkening in high-numerical-aperture fluoride fibers doped with 3000 and 10,000 parts in 106 by weight of Tm. The loss induced in the visible region by 1140-nm radiation is very strong (as high as 25 dB in a 50-cm piece) and broadband it can be removed by irradiation with the same pump wavelength at lower powers.
0146-9592
2195-2197
Barber, P.R.
1a47a0a3-2ad5-4572-ac44-94ad63e3967b
Paschotta, R.
d9e3d753-48c1-405f-b31e-e662f23a70a4
Tropper, A.C.
f3505426-e0d5-4e91-aed3-aecdb44b393c
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
Barber, P.R.
1a47a0a3-2ad5-4572-ac44-94ad63e3967b
Paschotta, R.
d9e3d753-48c1-405f-b31e-e662f23a70a4
Tropper, A.C.
f3505426-e0d5-4e91-aed3-aecdb44b393c
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d

Barber, P.R., Paschotta, R., Tropper, A.C. and Hanna, D.C. (1995) Infrared-induced photodarkening in Tm-doped fluoride fibres. Optics Letters, 20 (21), 2195-2197. (doi:10.1364/OL.20.002195).

Record type: Article

Abstract

We have observed a new type of infrared-induced photodarkening in high-numerical-aperture fluoride fibers doped with 3000 and 10,000 parts in 106 by weight of Tm. The loss induced in the visible region by 1140-nm radiation is very strong (as high as 25 dB in a 50-cm piece) and broadband it can be removed by irradiation with the same pump wavelength at lower powers.

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Published date: 1 November 1995
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Identifiers

Local EPrints ID: 78381
URI: http://eprints.soton.ac.uk/id/eprint/78381
DOI: doi:10.1364/OL.20.002195
ISSN: 0146-9592
PURE UUID: b30b3e17-2ad3-4399-87d0-7a44a6c31436

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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:13

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Contributors

Author: P.R. Barber
Author: R. Paschotta
Author: A.C. Tropper
Author: D.C. Hanna

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