Linewidth narrowing in free-space-running diamond Brillouin lasers
This study analyzes the linewidth narrowing characteristics of free-space-running Brillouin lasers and investigates the approaches to achieve linewidth compression and power enhancement simultaneously. The results show that the Stokes linewidth behavior in a free-space-running Brillouin laser cavity...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Cambridge University Press
2023-01-01
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| Series: | High Power Laser Science and Engineering |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S2095471923000488/type/journal_article |
| _version_ | 1797787953703944192 |
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| author | Duo Jin Zhenxu Bai Zhongan Zhao Yifu Chen Wenqiang Fan Yulei Wang Richard P. Mildren Zhiwei Lü |
| author_facet | Duo Jin Zhenxu Bai Zhongan Zhao Yifu Chen Wenqiang Fan Yulei Wang Richard P. Mildren Zhiwei Lü |
| author_sort | Duo Jin |
| collection | DOAJ |
| description | This study analyzes the linewidth narrowing characteristics of free-space-running Brillouin lasers and investigates the approaches to achieve linewidth compression and power enhancement simultaneously. The results show that the Stokes linewidth behavior in a free-space-running Brillouin laser cavity is determined by the phase diffusion of the pump and the technical noise of the system. Experimentally, a Stokes light output with a power of 22.5 W and a linewidth of 3.2 kHz was obtained at a coupling mirror reflectivity of 96%, which is nearly 2.5 times compressed compared with the linewidth of the pump (7.36 kHz). In addition, the theorical analysis shows that at a pump power of 60 W and a coupling mirror reflectivity of 96%, a Stokes output with a linewidth of 1.6 kHz and up to 80% optical conversion efficiency can be achieved by reducing the insertion loss of the intracavity. This study provides a promising technical route to achieve high-power ultra-narrow linewidth special wavelength laser radiations. |
| first_indexed | 2024-03-13T01:28:52Z |
| format | Article |
| id | doaj.art-2c3f61e8e32d44c5b3109eb4e5703128 |
| institution | Directory Open Access Journal |
| issn | 2095-4719 2052-3289 |
| language | English |
| last_indexed | 2024-03-13T01:28:52Z |
| publishDate | 2023-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | High Power Laser Science and Engineering |
| spelling | doaj.art-2c3f61e8e32d44c5b3109eb4e57031282023-07-04T09:18:47ZengCambridge University PressHigh Power Laser Science and Engineering2095-47192052-32892023-01-011110.1017/hpl.2023.48Linewidth narrowing in free-space-running diamond Brillouin lasersDuo Jin0https://orcid.org/0000-0002-8497-0084Zhenxu Bai1Zhongan Zhao2Yifu Chen3Wenqiang Fan4Yulei Wang5Richard P. Mildren6Zhiwei Lü7Center for Advanced Laser Technology, Hebei University of Technology, Tianjin, China Hebei Key Laboratory of Advanced Laser Technology and Equipment, Tianjin, ChinaCenter for Advanced Laser Technology, Hebei University of Technology, Tianjin, China Hebei Key Laboratory of Advanced Laser Technology and Equipment, Tianjin, China MQ Photonics Research Centre, Department of Physics and Astronomy, Macquarie University, Sydney, AustraliaCenter for Advanced Laser Technology, Hebei University of Technology, Tianjin, China Hebei Key Laboratory of Advanced Laser Technology and Equipment, Tianjin, ChinaCenter for Advanced Laser Technology, Hebei University of Technology, Tianjin, China Hebei Key Laboratory of Advanced Laser Technology and Equipment, Tianjin, ChinaCenter for Advanced Laser Technology, Hebei University of Technology, Tianjin, China Hebei Key Laboratory of Advanced Laser Technology and Equipment, Tianjin, ChinaCenter for Advanced Laser Technology, Hebei University of Technology, Tianjin, China Hebei Key Laboratory of Advanced Laser Technology and Equipment, Tianjin, ChinaMQ Photonics Research Centre, Department of Physics and Astronomy, Macquarie University, Sydney, AustraliaCenter for Advanced Laser Technology, Hebei University of Technology, Tianjin, China Hebei Key Laboratory of Advanced Laser Technology and Equipment, Tianjin, ChinaThis study analyzes the linewidth narrowing characteristics of free-space-running Brillouin lasers and investigates the approaches to achieve linewidth compression and power enhancement simultaneously. The results show that the Stokes linewidth behavior in a free-space-running Brillouin laser cavity is determined by the phase diffusion of the pump and the technical noise of the system. Experimentally, a Stokes light output with a power of 22.5 W and a linewidth of 3.2 kHz was obtained at a coupling mirror reflectivity of 96%, which is nearly 2.5 times compressed compared with the linewidth of the pump (7.36 kHz). In addition, the theorical analysis shows that at a pump power of 60 W and a coupling mirror reflectivity of 96%, a Stokes output with a linewidth of 1.6 kHz and up to 80% optical conversion efficiency can be achieved by reducing the insertion loss of the intracavity. This study provides a promising technical route to achieve high-power ultra-narrow linewidth special wavelength laser radiations.https://www.cambridge.org/core/product/identifier/S2095471923000488/type/journal_articlehigh powernarrow linewidthsingle-frequency laserstimulated Brillouin scattering |
| spellingShingle | Duo Jin Zhenxu Bai Zhongan Zhao Yifu Chen Wenqiang Fan Yulei Wang Richard P. Mildren Zhiwei Lü Linewidth narrowing in free-space-running diamond Brillouin lasers High Power Laser Science and Engineering high power narrow linewidth single-frequency laser stimulated Brillouin scattering |
| title | Linewidth narrowing in free-space-running diamond Brillouin lasers |
| title_full | Linewidth narrowing in free-space-running diamond Brillouin lasers |
| title_fullStr | Linewidth narrowing in free-space-running diamond Brillouin lasers |
| title_full_unstemmed | Linewidth narrowing in free-space-running diamond Brillouin lasers |
| title_short | Linewidth narrowing in free-space-running diamond Brillouin lasers |
| title_sort | linewidth narrowing in free space running diamond brillouin lasers |
| topic | high power narrow linewidth single-frequency laser stimulated Brillouin scattering |
| url | https://www.cambridge.org/core/product/identifier/S2095471923000488/type/journal_article |
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