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Evidence of Photodarkening Mitigation in Yb-Doped Fiber Lasers by Low Power 405 nm Radiation

Riccardo Piccoli, Hrvoje Gebavi, Laurent Lablonde, Benoit Cadier, Thierry Robin, Achille Monteville, Olivier Le Goffic, David Landais, David Mechin, Daniel Milanese, Thomas Brand, Stefano Taccheo Orcid Logo

IEEE Photonics Technology Letters, Volume: 26, Issue: 1, Pages: 50 - 53

Swansea University Author: Stefano Taccheo Orcid Logo

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DOI (Published version): 10.1109/LPT.2013.2288994

Abstract

In this letter, we investigate the impact of a 405 nm radiation on photodarkening generation in Yb-doped fiber laser. Simultaneous photodarkening and photobleaching effects induced by 976 and 405 nm radiations, respectively, were investigated in a 1070 nm laser and compared with the loss induced in...

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Published in: IEEE Photonics Technology Letters
ISSN: 1041-1135 1941-0174
Published: 2014
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URI: https://cronfa.swan.ac.uk/Record/cronfa21340
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spelling 2019-09-18T17:03:22.0735344 v2 21340 2015-05-12 Evidence of Photodarkening Mitigation in Yb-Doped Fiber Lasers by Low Power 405 nm Radiation ab5f951bdf448ec045d42a35d95dc0bf 0000-0003-0578-0563 Stefano Taccheo Stefano Taccheo true false 2015-05-12 MECH In this letter, we investigate the impact of a 405 nm radiation on photodarkening generation in Yb-doped fiber laser. Simultaneous photodarkening and photobleaching effects induced by 976 and 405 nm radiations, respectively, were investigated in a 1070 nm laser and compared with the loss induced in an irradiated active fiber. We observed a significant photobleaching effect due to 405 nm radiation but not a complete recovery. A strong absorption of the 405 nm radiation by the excited ions was also observed and could be the limiting factor for the bleaching performance. We also observed for the first time, to the best of our knowledge, ground-state absorption induced photodarkening in pristine fiber irradiated at 405 nm. This effect could generate additional residual losses in the laser system. Journal Article IEEE Photonics Technology Letters 26 1 50 53 1041-1135 1941-0174 1 1 2014 2014-01-01 10.1109/LPT.2013.2288994 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2019-09-18T17:03:22.0735344 2015-05-12T16:02:40.5280458 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Riccardo Piccoli 1 Hrvoje Gebavi 2 Laurent Lablonde 3 Benoit Cadier 4 Thierry Robin 5 Achille Monteville 6 Olivier Le Goffic 7 David Landais 8 David Mechin 9 Daniel Milanese 10 Thomas Brand 11 Stefano Taccheo 0000-0003-0578-0563 12
title Evidence of Photodarkening Mitigation in Yb-Doped Fiber Lasers by Low Power 405 nm Radiation
spellingShingle Evidence of Photodarkening Mitigation in Yb-Doped Fiber Lasers by Low Power 405 nm Radiation
Stefano Taccheo
title_short Evidence of Photodarkening Mitigation in Yb-Doped Fiber Lasers by Low Power 405 nm Radiation
title_full Evidence of Photodarkening Mitigation in Yb-Doped Fiber Lasers by Low Power 405 nm Radiation
title_fullStr Evidence of Photodarkening Mitigation in Yb-Doped Fiber Lasers by Low Power 405 nm Radiation
title_full_unstemmed Evidence of Photodarkening Mitigation in Yb-Doped Fiber Lasers by Low Power 405 nm Radiation
title_sort Evidence of Photodarkening Mitigation in Yb-Doped Fiber Lasers by Low Power 405 nm Radiation
author_id_str_mv ab5f951bdf448ec045d42a35d95dc0bf
author_id_fullname_str_mv ab5f951bdf448ec045d42a35d95dc0bf_***_Stefano Taccheo
author Stefano Taccheo
author2 Riccardo Piccoli
Hrvoje Gebavi
Laurent Lablonde
Benoit Cadier
Thierry Robin
Achille Monteville
Olivier Le Goffic
David Landais
David Mechin
Daniel Milanese
Thomas Brand
Stefano Taccheo
format Journal article
container_title IEEE Photonics Technology Letters
container_volume 26
container_issue 1
container_start_page 50
publishDate 2014
institution Swansea University
issn 1041-1135
1941-0174
doi_str_mv 10.1109/LPT.2013.2288994
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 0
active_str 0
description In this letter, we investigate the impact of a 405 nm radiation on photodarkening generation in Yb-doped fiber laser. Simultaneous photodarkening and photobleaching effects induced by 976 and 405 nm radiations, respectively, were investigated in a 1070 nm laser and compared with the loss induced in an irradiated active fiber. We observed a significant photobleaching effect due to 405 nm radiation but not a complete recovery. A strong absorption of the 405 nm radiation by the excited ions was also observed and could be the limiting factor for the bleaching performance. We also observed for the first time, to the best of our knowledge, ground-state absorption induced photodarkening in pristine fiber irradiated at 405 nm. This effect could generate additional residual losses in the laser system.
published_date 2014-01-01T03:25:17Z
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score 11.012678

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