A method to achieve spectral beam combining based on a novel symmetric grating
A symmetric grating is proposed to obtain higher output power in spectral beam combination by increasing the number of lasers and spectral utilization. The grating allows laser beams to be incident from both sides of the grating normal to achieve coaxial beam combining, so the number of beams and th...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-12-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2022.1102323/full |
| _version_ | 1811185653825667072 |
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| author | Xinmin Fan Xinmin Fan Jianxin Zhang Jianxin Zhang Jianxin Zhang Sensen Li Shun Li Shun Li Yan Wang Yan Wang Fei Du Fei Du Xiaodong Huang Xiaodong Huang Yingde Li Lujun Zhang Lujun Zhang Chunyan Wang Chunyan Wang |
| author_facet | Xinmin Fan Xinmin Fan Jianxin Zhang Jianxin Zhang Jianxin Zhang Sensen Li Shun Li Shun Li Yan Wang Yan Wang Fei Du Fei Du Xiaodong Huang Xiaodong Huang Yingde Li Lujun Zhang Lujun Zhang Chunyan Wang Chunyan Wang |
| author_sort | Xinmin Fan |
| collection | DOAJ |
| description | A symmetric grating is proposed to obtain higher output power in spectral beam combination by increasing the number of lasers and spectral utilization. The grating allows laser beams to be incident from both sides of the grating normal to achieve coaxial beam combining, so the number of beams and the combined output power are doubled compared with the traditional grating under the same spectral line-width. The grating is designed with the central wavelength of 4.65 μm, and the calculation results show that this grating is very advantageous for spectral beam combining, especially for the light waves in the range 4.55–4.71 μm, where their diffraction efficiencies are high (over 80%) and correspond to a wide and linear range of incidence angles. Meanwhile, based on the symmetric gratings we further propose a circular grating to achieve the same frequency spectral beam combining. This beam combining design will not increase the laser spectral line width while enhancing the laser power, reducing the requirements for the unit laser spectral line width, which is very meaningful in some application fields and will further enrich the research of spectral beam combining. |
| first_indexed | 2024-04-11T13:32:50Z |
| format | Article |
| id | doaj.art-0ba511bfe7cb494fa6620cd68e1b84a2 |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-04-11T13:32:50Z |
| publishDate | 2022-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-0ba511bfe7cb494fa6620cd68e1b84a22022-12-22T04:21:41ZengFrontiers Media S.A.Frontiers in Physics2296-424X2022-12-011010.3389/fphy.2022.11023231102323A method to achieve spectral beam combining based on a novel symmetric gratingXinmin Fan0Xinmin Fan1Jianxin Zhang2Jianxin Zhang3Jianxin Zhang4Sensen Li5Shun Li6Shun Li7Yan Wang8Yan Wang9Fei Du10Fei Du11Xiaodong Huang12Xiaodong Huang13Yingde Li14Lujun Zhang15Lujun Zhang16Chunyan Wang17Chunyan Wang18School of Physics and Electronic Information, Weifang University, Weifang, ChinaWeifang Key Laboratory of Laser Technology and Application, Weifang University, Weifang, ChinaSchool of Physics and Electronic Information, Weifang University, Weifang, ChinaWeifang Key Laboratory of Laser Technology and Application, Weifang University, Weifang, ChinaWeifang Academy of Advanced Opto-Electronic Circuits, Weifang, ChinaScience and Technology on Electro-Optical Information Security Control Laboratory, Tianjin, ChinaSchool of Physics and Electronic Information, Weifang University, Weifang, ChinaWeifang Key Laboratory of Laser Technology and Application, Weifang University, Weifang, ChinaSchool of Physics and Electronic Information, Weifang University, Weifang, ChinaWeifang Key Laboratory of Laser Technology and Application, Weifang University, Weifang, ChinaSchool of Physics and Electronic Information, Weifang University, Weifang, ChinaWeifang Key Laboratory of Laser Technology and Application, Weifang University, Weifang, ChinaSchool of Physics and Electronic Information, Weifang University, Weifang, ChinaWeifang Key Laboratory of Laser Technology and Application, Weifang University, Weifang, ChinaSchool of Physics and Electronic Information, Weifang University, Weifang, ChinaSchool of Physics and Electronic Information, Weifang University, Weifang, ChinaWeifang Key Laboratory of Laser Technology and Application, Weifang University, Weifang, ChinaSchool of Physics and Electronic Information, Weifang University, Weifang, ChinaWeifang Key Laboratory of Laser Technology and Application, Weifang University, Weifang, ChinaA symmetric grating is proposed to obtain higher output power in spectral beam combination by increasing the number of lasers and spectral utilization. The grating allows laser beams to be incident from both sides of the grating normal to achieve coaxial beam combining, so the number of beams and the combined output power are doubled compared with the traditional grating under the same spectral line-width. The grating is designed with the central wavelength of 4.65 μm, and the calculation results show that this grating is very advantageous for spectral beam combining, especially for the light waves in the range 4.55–4.71 μm, where their diffraction efficiencies are high (over 80%) and correspond to a wide and linear range of incidence angles. Meanwhile, based on the symmetric gratings we further propose a circular grating to achieve the same frequency spectral beam combining. This beam combining design will not increase the laser spectral line width while enhancing the laser power, reducing the requirements for the unit laser spectral line width, which is very meaningful in some application fields and will further enrich the research of spectral beam combining.https://www.frontiersin.org/articles/10.3389/fphy.2022.1102323/fullspectral beam combinationsymmetrical gratingcircular gratingsame frequency spectral beam combinationcoaxial beam combining |
| spellingShingle | Xinmin Fan Xinmin Fan Jianxin Zhang Jianxin Zhang Jianxin Zhang Sensen Li Shun Li Shun Li Yan Wang Yan Wang Fei Du Fei Du Xiaodong Huang Xiaodong Huang Yingde Li Lujun Zhang Lujun Zhang Chunyan Wang Chunyan Wang A method to achieve spectral beam combining based on a novel symmetric grating Frontiers in Physics spectral beam combination symmetrical grating circular grating same frequency spectral beam combination coaxial beam combining |
| title | A method to achieve spectral beam combining based on a novel symmetric grating |
| title_full | A method to achieve spectral beam combining based on a novel symmetric grating |
| title_fullStr | A method to achieve spectral beam combining based on a novel symmetric grating |
| title_full_unstemmed | A method to achieve spectral beam combining based on a novel symmetric grating |
| title_short | A method to achieve spectral beam combining based on a novel symmetric grating |
| title_sort | method to achieve spectral beam combining based on a novel symmetric grating |
| topic | spectral beam combination symmetrical grating circular grating same frequency spectral beam combination coaxial beam combining |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2022.1102323/full |
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