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Enhanced 3.9 µm emission from diode pumped Ho3+/Eu3+ codoped fluoroindate glasses

Enhanced 3.9 µm emission from diode pumped Ho3+/Eu3+ codoped fluoroindate glasses
Enhanced 3.9 µm emission from diode pumped Ho3+/Eu3+ codoped fluoroindate glasses
The use of Eu3+ codoping for enhancing the Ho3+: 5I5 5I6 emission in fluoroindate glasses shows that Eu3+ could depopulate the lower laser state Ho3+: 5I6 while having little effect on the upper state Ho3+: 5I5, resulting in greater population inversion. The Ho3+/Eu3+ co-doped glass has high spontaneous transition probability (6.31 s−1) together with large emission cross section (7.68 ×10–21 cm2). This study indicates that codoping of Ho3+ with Eu3+ is a feasible alternative to quench the lower energy level of the 3.9 μm emission and the Ho3+/Eu3+ co-doped fluoroindate glass is a promising material for efficient 3.9 μm fiber lasers.
0146-9592
2031-2034
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8

Brambilla, Gilberto (2021) Enhanced 3.9 µm emission from diode pumped Ho3+/Eu3+ codoped fluoroindate glasses. Optics Letters, 46 (9), 2031-2034. (doi:10.1364/OL.423399).

Record type: Article

Abstract

The use of Eu3+ codoping for enhancing the Ho3+: 5I5 5I6 emission in fluoroindate glasses shows that Eu3+ could depopulate the lower laser state Ho3+: 5I6 while having little effect on the upper state Ho3+: 5I5, resulting in greater population inversion. The Ho3+/Eu3+ co-doped glass has high spontaneous transition probability (6.31 s−1) together with large emission cross section (7.68 ×10–21 cm2). This study indicates that codoping of Ho3+ with Eu3+ is a feasible alternative to quench the lower energy level of the 3.9 μm emission and the Ho3+/Eu3+ co-doped fluoroindate glass is a promising material for efficient 3.9 μm fiber lasers.

Text
Enhanced 3.9 µm emission from diode pumped Ho3+ Eu3+ codoped fluoroindate glasses - Accepted Manuscript
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More information

Accepted/In Press date: 24 March 2021
e-pub ahead of print date: 19 April 2021

Identifiers

Local EPrints ID: 449732
URI: http://eprints.soton.ac.uk/id/eprint/449732
ISSN: 0146-9592
PURE UUID: 011e43d3-788e-482c-bbfe-c43d29fb5f32
ORCID for Gilberto Brambilla: ORCID iD orcid.org/0000-0002-5730-0499

Catalogue record

Date deposited: 15 Jun 2021 16:30
Last modified: 28 Apr 2022 05:17

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