A 1.8 kW high power all-fiber Raman oscillator
Fiber Bragg grating-based Raman oscillators are capable of achieving targeted frequency conversion and brightness enhancement through the provision of gain via stimulated Raman scattering across a broad gain spectrum. This capability renders them an exemplary solution for the acquisition of high-bri...
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2024-01-01
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| Series: | High Power Laser Science and Engineering |
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| Online Access: | https://www.cambridge.org/core/product/identifier/S209547192400063X/type/journal_article |
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| author | Chenchen Fan Xiulu Hao Yang Li Min Fu Zilun Chen Tianfu Yao Jinyong Leng Pu Zhou |
| author_facet | Chenchen Fan Xiulu Hao Yang Li Min Fu Zilun Chen Tianfu Yao Jinyong Leng Pu Zhou |
| author_sort | Chenchen Fan |
| collection | DOAJ |
| description | Fiber Bragg grating-based Raman oscillators are capable of achieving targeted frequency conversion and brightness enhancement through the provision of gain via stimulated Raman scattering across a broad gain spectrum. This capability renders them an exemplary solution for the acquisition of high-brightness, specialized-wavelength lasers. Nonetheless, the output power of all-fiber Raman oscillators is typically limited to several hundred watts, primarily due to limitations in injectable pump power and the influence of higher-order Raman effects, which is inadequate for certain application demands. In this study, we introduce an innovative approach by employing a graded-index fiber with a core diameter of up to 150 μm as the Raman gain medium. This strategy not only enhances the injectable pump power but also mitigates higher-order Raman effects. Consequently, we have successfully attained an output power of 1780 W for the all-fiber Raman laser at 1130 nm, representing the highest output power in Raman fiber oscillators with any configuration reported to date. |
| format | Article |
| id | doaj-art-d2ee704d51184f1d95555ad9436e45d1 |
| institution | OA Journals |
| issn | 2095-4719 2052-3289 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | High Power Laser Science and Engineering |
| spelling | doaj-art-d2ee704d51184f1d95555ad9436e45d12025-08-20T02:36:15ZengCambridge University PressHigh Power Laser Science and Engineering2095-47192052-32892024-01-011210.1017/hpl.2024.63A 1.8 kW high power all-fiber Raman oscillatorChenchen Fan0https://orcid.org/0000-0001-5798-7991Xiulu Hao1https://orcid.org/0000-0001-7779-6180Yang Li2Min Fu3Zilun Chen4Tianfu Yao5Jinyong Leng6Pu Zhou7College 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, 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, 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, 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, ChinaFiber Bragg grating-based Raman oscillators are capable of achieving targeted frequency conversion and brightness enhancement through the provision of gain via stimulated Raman scattering across a broad gain spectrum. This capability renders them an exemplary solution for the acquisition of high-brightness, specialized-wavelength lasers. Nonetheless, the output power of all-fiber Raman oscillators is typically limited to several hundred watts, primarily due to limitations in injectable pump power and the influence of higher-order Raman effects, which is inadequate for certain application demands. In this study, we introduce an innovative approach by employing a graded-index fiber with a core diameter of up to 150 μm as the Raman gain medium. This strategy not only enhances the injectable pump power but also mitigates higher-order Raman effects. Consequently, we have successfully attained an output power of 1780 W for the all-fiber Raman laser at 1130 nm, representing the highest output power in Raman fiber oscillators with any configuration reported to date.https://www.cambridge.org/core/product/identifier/S209547192400063X/type/journal_articlefiber lasergraded-index fiberRaman oscillatorstimulated Raman scattering |
| spellingShingle | Chenchen Fan Xiulu Hao Yang Li Min Fu Zilun Chen Tianfu Yao Jinyong Leng Pu Zhou A 1.8 kW high power all-fiber Raman oscillator High Power Laser Science and Engineering fiber laser graded-index fiber Raman oscillator stimulated Raman scattering |
| title | A 1.8 kW high power all-fiber Raman oscillator |
| title_full | A 1.8 kW high power all-fiber Raman oscillator |
| title_fullStr | A 1.8 kW high power all-fiber Raman oscillator |
| title_full_unstemmed | A 1.8 kW high power all-fiber Raman oscillator |
| title_short | A 1.8 kW high power all-fiber Raman oscillator |
| title_sort | 1 8 kw high power all fiber raman oscillator |
| topic | fiber laser graded-index fiber Raman oscillator stimulated Raman scattering |
| url | https://www.cambridge.org/core/product/identifier/S209547192400063X/type/journal_article |
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