Time response characteristics of photodarkening-induced loss in Yb-doped fiber amplifier
Time response characteristics of photodarkening-induced loss in Yb-doped fiber amplifier
Photodarkening (PD) can degrade the output power and increase the thermal load in Yb-doped fiber lasers and amplifiers by increasing the propagation loss in the core [1,2]. PD can be attributed to color centers [3] and is reported to grow when the fiber is in use, over times from a few minutes to many hours (e.g., [2-4]). Typically, this is characterized in terms of a reduced output power of the operating device, but it is also possible to measure the transmission with non-resonant optical probes before, during, and after use. Although faster changes in the photodarkening are also possible [3], they have received little attention. Such fast changes can affect both the impact and the characterization of photodarkening.
Feng, Yutong
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Codemard, C.A.
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Barua, P.
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Lin, Huaiqin
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Zhu, Sheng
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Feng, Yujun
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Pidishety, S.
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Hong, Soonki
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Sahu, J.K.
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Nilsson, J.
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17 October 2019
Feng, Yutong
8257a816-5e4a-47bc-8aa2-e364c4d6e21e
Codemard, C.A.
3aa50483-b61c-4e7e-b178-c9a88bb47bef
Barua, P.
ab53bdd9-e00f-46b0-b4f4-5ab6534fe8a6
Lin, Huaiqin
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Zhu, Sheng
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Feng, Yujun
25a28374-33d9-478f-9bd2-98f0d93231af
Pidishety, S.
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Hong, Soonki
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Sahu, J.K.
009f5fb3-6555-411a-9a0c-9a1b5a29ceb2
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Feng, Yutong, Codemard, C.A., Barua, P., Lin, Huaiqin, Zhu, Sheng, Feng, Yujun, Pidishety, S., Hong, Soonki, Sahu, J.K. and Nilsson, J.
(2019)
Time response characteristics of photodarkening-induced loss in Yb-doped fiber amplifier.
2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019, ICM – International Congress Centre, Munich, Germany.
23 - 27 Jun 2019.
1 pp
.
(doi:10.1109/CLEOE-EQEC.2019.8872358).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Photodarkening (PD) can degrade the output power and increase the thermal load in Yb-doped fiber lasers and amplifiers by increasing the propagation loss in the core [1,2]. PD can be attributed to color centers [3] and is reported to grow when the fiber is in use, over times from a few minutes to many hours (e.g., [2-4]). Typically, this is characterized in terms of a reduced output power of the operating device, but it is also possible to measure the transmission with non-resonant optical probes before, during, and after use. Although faster changes in the photodarkening are also possible [3], they have received little attention. Such fast changes can affect both the impact and the characterization of photodarkening.
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Published date: 17 October 2019
Venue - Dates:
2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019, ICM – International Congress Centre, Munich, Germany, 2019-06-23 - 2019-06-27
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Local EPrints ID: 441945
URI: http://eprints.soton.ac.uk/id/eprint/441945
PURE UUID: b123fbed-fc42-4c1c-b788-a7a4382463c0
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Date deposited: 02 Jul 2020 16:35
Last modified: 17 Mar 2024 02:53
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Author:
Yutong Feng
Author:
C.A. Codemard
Author:
P. Barua
Author:
Huaiqin Lin
Author:
Sheng Zhu
Author:
Yujun Feng
Author:
S. Pidishety
Author:
Soonki Hong
Author:
J.K. Sahu
Author:
J. Nilsson
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