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.
2031-2034
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
1 May 2021
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), .
(doi:10.1364/OL.423399).
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
More information
Accepted/In Press date: 24 March 2021
e-pub ahead of print date: 19 April 2021
Published date: 1 May 2021
Additional Information:
Funding Information:
Funding. National Natural Science Foundation of China (62090062, 61935006 (National Key Program), 61805074, 62005060, 61905048); Fundamental Research Funds for the Central Universities (3072019CF2504, 3072019CF2506, 3072019CFQ2503, 3072020CFJ2507, 3072020CFQ2501, 3072020CFQ2502, 3072020CFQ2503, 3072020CFQ 2504, GK2250260018, HEUCFG201841); The 111 Project to the Harbin Engineering University (B13015); Heilongjiang Touyan Innovation Team Program; Heilongjiang Provincial Natural Science Foundation of China (LH2020F029); Shenzhen Technical Project (JCYJ20190808173619062).
Publisher Copyright:
© 2021 Optical Society of America
Identifiers
Local EPrints ID: 449732
URI: http://eprints.soton.ac.uk/id/eprint/449732
ISSN: 0146-9592
PURE UUID: 011e43d3-788e-482c-bbfe-c43d29fb5f32
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Date deposited: 15 Jun 2021 16:30
Last modified: 17 Mar 2024 06:37
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