| 外腔反馈对半导体激光器振荡特性的影响 |
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| 引用本文： | 刘崇,葛剑虹,陈军.外腔反馈对半导体激光器振荡特性的影响[J].物理学报,2006,55(10):5211-5215. |
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| 作者姓名： | 刘崇 葛剑虹 陈军 |
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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，杭州 310027 |
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| 基金项目： | 教育部留学回国人员科研启动基金 |
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| 摘 要： | 通过有效反射系数的引入，根据激光谐振腔的自再现条件和对腔内光子密度、载流子密度方程的求解，分析了外腔反馈对半导体激光器的阈值增益、振荡频率和输出功率等振荡特性的影响，并通过实验进行了验证.外腔反馈后，半导体激光器的阈值电流从420mA降为370mA，输出功率的斜率效率获得了提高，理论计算的输出功率曲线与实验结果符合的很好.
关键词：
半导体激光器
外腔反馈
振荡特性
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| 关 键 词： | 半导体激光器 外腔反馈 振荡特性 |
| 收稿时间： | 09 26 2005 12:00AM |
| 修稿时间： | 2005-09-262005-12-23 |
Influence of external cavity feedback on the oscillating characteristics of a semiconductor laser |
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| Liu Chong,Ge Jian-Hong,Chen Jun.Influence of external cavity feedback on the oscillating characteristics of a semiconductor laser[J].Acta Physica Sinica,2006,55(10):5211-5215. |
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| Authors: | Liu Chong Ge Jian-Hong Chen Jun |
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| Institution: | The State Key Laboratory of Modem Optical Instrumentation, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Through the introduction of effective reflectivity, the influence of external optical feedback on the oscillating characteristics of a semiconductor laser is discussed, such as the threshold gain, laser frequency and output power, according to the self-consistency condition and the photon and carrier density ratio equation. In the experiment, the threshold current of a laser diode decreased from 420mA to 370mA with external cavity feedback and the slope efficiency increased. The output power obtained by theoretical simulation agrees well with the experiment results. |
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| Keywords: | semiconductor laser external feedback oscillating characteristics |
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