Achieving a 4 kW Raman fiber amplifier with the assistance of four-wave mixing
Raman fiber lasers, known for their capacity to provide both high-power and precise wavelength emissions, are gaining attraction across a spectrum of applications, including fiber optic communications, sensing, spectroscopy and imaging. However, the scalability of Raman laser power is impeded by the...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2025-01-01
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| Series: | High Power Laser Science and Engineering |
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| Online Access: | https://www.cambridge.org/core/product/identifier/S2095471925000295/type/journal_article |
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| author | Chenchen Fan Tianfu Yao Xiulu Hao Yang Li Jinyong Leng Pu Zhou |
| author_facet | Chenchen Fan Tianfu Yao Xiulu Hao Yang Li Jinyong Leng Pu Zhou |
| author_sort | Chenchen Fan |
| collection | DOAJ |
| description | Raman fiber lasers, known for their capacity to provide both high-power and precise wavelength emissions, are gaining attraction across a spectrum of applications, including fiber optic communications, sensing, spectroscopy and imaging. However, the scalability of Raman laser power is impeded by the constraints of pump brightness and the deleterious effects of second-order Raman scattering. In this research, we have undertaken a comprehensive experimental and simulation-based investigation into the impact of pump brightness on the output characteristics within an amplifier framework. Our innovative approach integrates high-brightness pumping with multi-mode graded-index fibers. Notably, we have pioneered the introduction of multi-wavelength seed light to facilitate four-wave mixing, thereby effectively mitigating higher-order Raman scattering. This novel strategy has culminated in the achievement of a 4 kW Raman laser output in an all-fiber configuration, representing the highest output power reported so far. |
| format | Article |
| id | doaj-art-66bd000638644de4b8a16e4183d5411d |
| institution | OA Journals |
| issn | 2095-4719 2052-3289 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | High Power Laser Science and Engineering |
| spelling | doaj-art-66bd000638644de4b8a16e4183d5411d2025-08-20T02:36:03ZengCambridge University PressHigh Power Laser Science and Engineering2095-47192052-32892025-01-011310.1017/hpl.2025.29Achieving a 4 kW Raman fiber amplifier with the assistance of four-wave mixingChenchen Fan0https://orcid.org/0000-0001-5798-7991Tianfu Yao1Xiulu Hao2https://orcid.org/0000-0001-7779-6180Yang Li3Jinyong Leng4Pu Zhou5College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, China Nanhu Laser Laboratory, National University of Defense Technology, Changsha, China Hunan Provincial Key Laboratory of High Energy Laser Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, China Nanhu Laser Laboratory, National University of Defense Technology, Changsha, China Hunan Provincial Key Laboratory of High Energy Laser Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaRaman fiber lasers, known for their capacity to provide both high-power and precise wavelength emissions, are gaining attraction across a spectrum of applications, including fiber optic communications, sensing, spectroscopy and imaging. However, the scalability of Raman laser power is impeded by the constraints of pump brightness and the deleterious effects of second-order Raman scattering. In this research, we have undertaken a comprehensive experimental and simulation-based investigation into the impact of pump brightness on the output characteristics within an amplifier framework. Our innovative approach integrates high-brightness pumping with multi-mode graded-index fibers. Notably, we have pioneered the introduction of multi-wavelength seed light to facilitate four-wave mixing, thereby effectively mitigating higher-order Raman scattering. This novel strategy has culminated in the achievement of a 4 kW Raman laser output in an all-fiber configuration, representing the highest output power reported so far.https://www.cambridge.org/core/product/identifier/S2095471925000295/type/journal_articlefiber lasergraded-index fiberRaman amplifierstimulated Raman scattering |
| spellingShingle | Chenchen Fan Tianfu Yao Xiulu Hao Yang Li Jinyong Leng Pu Zhou Achieving a 4 kW Raman fiber amplifier with the assistance of four-wave mixing High Power Laser Science and Engineering fiber laser graded-index fiber Raman amplifier stimulated Raman scattering |
| title | Achieving a 4 kW Raman fiber amplifier with the assistance of four-wave mixing |
| title_full | Achieving a 4 kW Raman fiber amplifier with the assistance of four-wave mixing |
| title_fullStr | Achieving a 4 kW Raman fiber amplifier with the assistance of four-wave mixing |
| title_full_unstemmed | Achieving a 4 kW Raman fiber amplifier with the assistance of four-wave mixing |
| title_short | Achieving a 4 kW Raman fiber amplifier with the assistance of four-wave mixing |
| title_sort | achieving a 4 kw raman fiber amplifier with the assistance of four wave mixing |
| topic | fiber laser graded-index fiber Raman amplifier stimulated Raman scattering |
| url | https://www.cambridge.org/core/product/identifier/S2095471925000295/type/journal_article |
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