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1.88 µm laser emission from Tm3+ doped fluorosilicate glass microspheres with excellent stability and high damage threshold

1.88 µm laser emission from Tm3+ doped fluorosilicate glass microspheres with excellent stability and high damage threshold
1.88 µm laser emission from Tm3+ doped fluorosilicate glass microspheres with excellent stability and high damage threshold
In this letter, high Q factor microsphere resonators with excellent stability and high damage threshold are fabricated from Tm3+ doped fluorosilicate glasses using the traditional melt-quenching and fiber heating techniques. Intense 1.88 µm photoluminescence and single mode laser emission are obtained under the excitation of an 808 nm laser. The Q factor of the microsphere resonator is measured to be as high as 1.4 × 106. Models for photoluminescence and lasing are proposed using spectroscopic data from the absorption and emission spectra. The excellent resistance to humidity and temperature are characterized from the transmittance spectra under different environmental conditions. Differential thermal analysis (DTA), measured in four different glass samples proves the high damage threshold. The proposed glass microsphere resonator laser can find application in optical sensors and micro lasers, especially in complex environments.
Lasers, Microcavities, Rare-earth-doped materials
0022-2313
Wang, Xin
9c97f900-36e0-4874-bdeb-82d5e2775136
Yu, Jibo
92d0e52c-cc56-4547-9e58-7fb5d1938d89
Zhao, Haiyan
d273959c-2e0a-49f4-812e-6c1565298391
Lu, Xiaosong
d609256d-0cd0-45cc-aa9d-68fe7e9e63fd
Li, Wenhao
3443c1e0-a1d2-42ae-9613-b48f570506a1
Tian, Ke
3dff28f5-aaef-4573-aa64-713e9c53a098
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Wang, Pengfei
a1ba240f-d4f0-4150-bcd8-cb418e841dcb
Wang, Xin
9c97f900-36e0-4874-bdeb-82d5e2775136
Yu, Jibo
92d0e52c-cc56-4547-9e58-7fb5d1938d89
Zhao, Haiyan
d273959c-2e0a-49f4-812e-6c1565298391
Lu, Xiaosong
d609256d-0cd0-45cc-aa9d-68fe7e9e63fd
Li, Wenhao
3443c1e0-a1d2-42ae-9613-b48f570506a1
Tian, Ke
3dff28f5-aaef-4573-aa64-713e9c53a098
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Wang, Pengfei
a1ba240f-d4f0-4150-bcd8-cb418e841dcb

Wang, Xin, Yu, Jibo, Zhao, Haiyan, Lu, Xiaosong, Li, Wenhao, Tian, Ke, Brambilla, Gilberto and Wang, Pengfei (2020) 1.88 µm laser emission from Tm3+ doped fluorosilicate glass microspheres with excellent stability and high damage threshold. Journal of Luminescence, 220, [117028]. (doi:10.1016/j.jlumin.2020.117028).

Record type: Article

Abstract

In this letter, high Q factor microsphere resonators with excellent stability and high damage threshold are fabricated from Tm3+ doped fluorosilicate glasses using the traditional melt-quenching and fiber heating techniques. Intense 1.88 µm photoluminescence and single mode laser emission are obtained under the excitation of an 808 nm laser. The Q factor of the microsphere resonator is measured to be as high as 1.4 × 106. Models for photoluminescence and lasing are proposed using spectroscopic data from the absorption and emission spectra. The excellent resistance to humidity and temperature are characterized from the transmittance spectra under different environmental conditions. Differential thermal analysis (DTA), measured in four different glass samples proves the high damage threshold. The proposed glass microsphere resonator laser can find application in optical sensors and micro lasers, especially in complex environments.

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More information

Accepted/In Press date: 3 January 2020
e-pub ahead of print date: 7 January 2020
Published date: April 2020
Keywords: Lasers, Microcavities, Rare-earth-doped materials

Identifiers

Local EPrints ID: 441996
URI: http://eprints.soton.ac.uk/id/eprint/441996
ISSN: 0022-2313
PURE UUID: 9af37455-87f3-4546-a68d-66a6ff974bb9
ORCID for Gilberto Brambilla: ORCID iD orcid.org/0000-0002-5730-0499

Catalogue record

Date deposited: 03 Jul 2020 16:31
Last modified: 28 Apr 2022 01:48

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Contributors

Author: Xin Wang
Author: Jibo Yu
Author: Haiyan Zhao
Author: Xiaosong Lu
Author: Wenhao Li
Author: Ke Tian
Author: Pengfei Wang

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