| LD外腔结构的传输矩阵理论分析 |
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| 引用本文： | 陈光秒,葛剑虹,陈军,洪治.LD外腔结构的传输矩阵理论分析[J].光学仪器,2004,26(6):28-32. |
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| 作者姓名： | 陈光秒 葛剑虹 陈军 洪治 |
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| 作者单位： | 浙江大学现代光学仪器国家重点实验室,浙江,杭州,310027;浙江大学现代光学仪器国家重点实验室,浙江,杭州,310027;浙江大学现代光学仪器国家重点实验室,浙江,杭州,310027;浙江大学现代光学仪器国家重点实验室,浙江,杭州,310027 |
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| 摘 要： | 利用传输矩阵理论结合具体实验装置分析了外腔反馈注入系统的特性和反馈注入光束的传输特点。对准直型和会聚型两种不同的外腔结构分别进行了理论计算和比较,得出了会聚型外腔具有对外腔镜倾斜失调不灵敏的突出优点的结论。并在半导体激光器列阵的外腔实验研究中获得上述理论的验证,得到了远场分布光瓣宽度(FWHM)为0.46°,相应于光束质量为1.12倍衍射极限的激光输出。
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| 关 键 词： | LD外腔 反馈注入 传输矩阵 衍射极限 |
| 文章编号： | 1005-5630(2004)06-0028-05 |
| 修稿时间： | 2004年4月8日 |
Analysis on the external cavity laser diode with the theory of ray transfer matrix |
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| CHEN Guang-miao,GE Jian-hong,CHEN Jun,HONG Zhig University,Hangzhou,China.Analysis on the external cavity laser diode with the theory of ray transfer matrix[J].Optical Instruments,2004,26(6):28-32. |
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| Authors: | CHEN Guang-miao GE Jian-hong CHEN Jun HONG Zhig University Hangzhou China |
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| Affiliation: | CHEN Guang-miao,GE Jian-hong,CHEN Jun,HONG Zhig University,Hangzhou 310027,China) |
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| Abstract: | A novel and practical external cavity laser diode (LD) is presented. Using ray transfer matrix, the characteristics of the external cavity and the feedback laser beam are studied. With the theory calculation on the two different external cavity geometries, collimation geometry and focused geometry, the conclusion that the focused geometry is insensitive to the tilt of the external cavity mirror is obtained and validated in the experiment on the LD array. With this kind of setup, a laser beam with 0.46° far field divergence angle(FWHM), which corresponding to 1.12 times diffraction limit is obtained. |
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| Keywords: | LD external cavity feedback transfer matrix diffraction limit |
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