Investigation of thermal loads for transverse mode instability in ytterbium-doped large mode area fibers
We theoretically study the influence of ytterbium (Yb)-doped fiber parameters on the transverse mode instability (TMI) in aspects of TMI threshold power, average, and total thermal loads. To understand the individual contribution of heat sources, such as photodarkening (PD) and quantum defect (QD),...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Online Access: | https://hdl.handle.net/10356/159621 |
| _version_ | 1824455940801298432 |
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| author | Xia, Nan Yoo, Seongwoo |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Xia, Nan Yoo, Seongwoo |
| author_sort | Xia, Nan |
| collection | NTU |
| description | We theoretically study the influence of ytterbium (Yb)-doped fiber parameters on the transverse mode instability (TMI) in aspects of TMI threshold power, average, and total thermal loads. To understand the individual contribution of heat sources, such as photodarkening (PD) and quantum defect (QD), to the thermal loads for TMI, we include the PD fiber as well as non-PD fiber in our study. The thermal load profiles accounting for the PD and QD are separately calculated to identify their relations to the TMI threshold. It is found that the thermal loads at TMI threshold greatly depend on a gain saturation effect and V-number in both the PD and non-PD fibers. Furthermore, even under the same saturation effect, average thermal load at TMI threshold varies with the Yb ion concentration while total thermal load remains unchanged regardless of the Yb concentrations. By providing the parametric studies on TMI behaviors, our study can be found useful when the fiber parameter adjustment is considered for TMI suppression in both the PD and non-PD fibers. |
| first_indexed | 2025-02-19T03:46:12Z |
| format | Journal Article |
| id | ntu-10356/159621 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:46:12Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1596212022-06-29T04:38:03Z Investigation of thermal loads for transverse mode instability in ytterbium-doped large mode area fibers Xia, Nan Yoo, Seongwoo School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Thermal Loading Optical Fiber Amplifiers We theoretically study the influence of ytterbium (Yb)-doped fiber parameters on the transverse mode instability (TMI) in aspects of TMI threshold power, average, and total thermal loads. To understand the individual contribution of heat sources, such as photodarkening (PD) and quantum defect (QD), to the thermal loads for TMI, we include the PD fiber as well as non-PD fiber in our study. The thermal load profiles accounting for the PD and QD are separately calculated to identify their relations to the TMI threshold. It is found that the thermal loads at TMI threshold greatly depend on a gain saturation effect and V-number in both the PD and non-PD fibers. Furthermore, even under the same saturation effect, average thermal load at TMI threshold varies with the Yb ion concentration while total thermal load remains unchanged regardless of the Yb concentrations. By providing the parametric studies on TMI behaviors, our study can be found useful when the fiber parameter adjustment is considered for TMI suppression in both the PD and non-PD fibers. 2022-06-29T04:38:03Z 2022-06-29T04:38:03Z 2020 Journal Article Xia, N. & Yoo, S. (2020). Investigation of thermal loads for transverse mode instability in ytterbium-doped large mode area fibers. Journal of Lightwave Technology, 38(16), 4478-4489. https://dx.doi.org/10.1109/JLT.2020.2986981 0733-8724 https://hdl.handle.net/10356/159621 10.1109/JLT.2020.2986981 2-s2.0-85089895469 16 38 4478 4489 en Journal of Lightwave Technology © 2020 IEEE. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Thermal Loading Optical Fiber Amplifiers Xia, Nan Yoo, Seongwoo Investigation of thermal loads for transverse mode instability in ytterbium-doped large mode area fibers |
| title | Investigation of thermal loads for transverse mode instability in ytterbium-doped large mode area fibers |
| title_full | Investigation of thermal loads for transverse mode instability in ytterbium-doped large mode area fibers |
| title_fullStr | Investigation of thermal loads for transverse mode instability in ytterbium-doped large mode area fibers |
| title_full_unstemmed | Investigation of thermal loads for transverse mode instability in ytterbium-doped large mode area fibers |
| title_short | Investigation of thermal loads for transverse mode instability in ytterbium-doped large mode area fibers |
| title_sort | investigation of thermal loads for transverse mode instability in ytterbium doped large mode area fibers |
| topic | Engineering::Electrical and electronic engineering Thermal Loading Optical Fiber Amplifiers |
| url | https://hdl.handle.net/10356/159621 |
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