| 线性调频半导体激光器自混频干涉理论模型 |
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| 引用本文： | 马军山,杨永才,强锡富.线性调频半导体激光器自混频干涉理论模型[J].光子学报,2002,31(5):553-556. |
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| 作者姓名： | 马军山 杨永才 强锡富 |
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| 作者单位： | 1. 上海理工大学光学与电子信息工程学院,上海,200093
2. 哈尔滨工业大学精密仪器系,哈尔滨,150001 |
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| 基金项目： | Supported by the National Nature Science Foundation of China( No.5 96 75 0 77) |
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| 摘 要： | 使用半导体激光器在弱反馈条件下的动力学理论,建立了线性调频半导体激光器的自混频干涉理论模型.基于该模型,分析了激光器振荡频率偏移与输出功率变化特性.通过测量激光器输出功率谱,可以得到激光器前端面与被测目标之间的距离.
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| 关 键 词： | 自混频干涉仪 调频激光器 绝对测距 |
| 收稿时间： | 2001-08-20 |
THEORETICAL MODEL ON SELF-MIXING INTERFERENCEIN A LINEAR FREQUENCY MODULATED LASER DIODE |
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| Abstract.THEORETICAL MODEL ON SELF-MIXING INTERFERENCEIN A LINEAR FREQUENCY MODULATED LASER DIODE[J].Acta Photonica Sinica,2002,31(5):553-556. |
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| Authors: | Abstract |
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| Institution: | 1. College of Optics and Electronics, University of Shanghai for Science and Technology, Shanghai 200093;2. Department of Precision Instrument, Harbin Institute of Technology, Harbin 150001 |
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| Abstract: | Theoretical model of self mixing interference in a linear frequency modulated laserdiode is presented by using the dynamic theory of semiconductor laser with weak external optical feedback.The characteristics of oscillation frequency shift and output power changes of the laser diode are analyzed by using the theoretical model.The absolute distance from front facet of laser diode to target can be found by measuring spectrum of output power of the laser diode. |
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| Keywords: | Self mixing interferometer Frequency modulated laser diode Distance measurement |
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