| Enhancing Coherent Combining Efficiency via Choosing Appropriate Lasing Wavelength in a Michelson Compound Cavity Based on Two 3 dB Fibre Loop Mirrors and One Fibre Bragg Grating |
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| 引用本文： | 刘丰年 贾秀杰 刘艳格 袁树忠 董孝义. Enhancing Coherent Combining Efficiency via Choosing Appropriate Lasing Wavelength in a Michelson Compound Cavity Based on Two 3 dB Fibre Loop Mirrors and One Fibre Bragg Grating[J]. 中国物理快报, 2007, 24(4): 929-932 |
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| 作者姓名： | 刘丰年 贾秀杰 刘艳格 袁树忠 董孝义 |
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| 作者单位： | Key Laboratory of Opto-Electronic Information and Technology （Ministry of Education）, Institute of Modern Optics, Nankai University, Tianjin 300071 |
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| 基金项目： | Supported by the National Key Basic Research and Development Programme of China under Grant No 2003CB314906, and the Tianjin Natural Science Foundation under Grant No 06YFJZJC00300. |
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| 摘 要： | Enhancing coherent combining efficiency via choosing appropriate lasing wavelength in a Michelson compound cavity based on two 3 dB fibre loop mirrors and one fibre Bragg grating （FBG） has been experimentally demonstrated. The FBG with 4.5% reflectivity is replaced at the cleaved facet with 4% Fresnel reflection. A high coherent combining efficiency of 93.5% is obtained when the FBG with central wavelength at 1559.845nm is introduced into the cavity, while it is only 90.1% combining efficiency with the FBG at central wavelength 1557.830 nm. In comparison with other reports, the proposed compound-cavity laser has the advantage of needless tuning FBG to obtain the coherent condition, and it is facile to ascertain the seemly wavelength lasing for a Michelson compound cavity.
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| 关 键 词： | 结合效率 波光 空穴 光纤维 |
| 收稿时间： | 2006-10-24 |
| 修稿时间： | 2006-10-24 |
Enhancing Coherent Combining Efficiency via Choosing Appropriate Lasing Wavelength in a Michelson Compound Cavity Based on Two 3dB Fibre Loop Mirrors and One Fibre Bragg Grating |
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| LIU Feng-Nian,JIA Xiu-Jie,LIU Yan-Ge,YUAN Shu-Zhong,DONG Xiao-Yi. Enhancing Coherent Combining Efficiency via Choosing Appropriate Lasing Wavelength in a Michelson Compound Cavity Based on Two 3dB Fibre Loop Mirrors and One Fibre Bragg Grating[J]. Chinese Physics Letters, 2007, 24(4): 929-932 |
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| Authors: | LIU Feng-Nian JIA Xiu-Jie LIU Yan-Ge YUAN Shu-Zhong DONG Xiao-Yi |
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| Affiliation: | Key Laboratory of Opto-Electronic Information and Technology (Ministry of Education |
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| Abstract: | Enhancing coherent combining efficiency via choosing appropriate lasing wavelength in a Michelson compound cavity based on two 3dB fibre loop mirrors and one fibre Bragg grating (FBG) has been experimentally demonstrated. The FBG with 4.5% reflectivity is replaced at the cleaved facet with 4% Fresnel reflection. A high coherent combining efficiency of 93.5% is obtained when the FBG with central wavelength at 1559.845nm is introduced into the cavity, while it is only 90.1% combining efficiency with the FBG at central wavelength 1557.830nm. In comparison with other reports, the proposed compound-cavity laser has the advantage of needless tuning FBG to obtain the coherent condition, and it is facile to ascertain the seemlywavelength lasing for a Michelson compound cavity. |
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| Keywords: | 42.25.Hz 42.55.Wd 42.60.Da |
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