| 基于飞秒激光器光学频率梳的绝对距离测量 |
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| 引用本文： | 许艳,周维虎,刘德明,丁蕾.基于飞秒激光器光学频率梳的绝对距离测量[J].光电工程,2011(8):79-83,89. |
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| 作者姓名： | 许艳 周维虎 刘德明 丁蕾 |
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| 作者单位： | 华中科技大学光电子科学与工程学院;江西理工大学应用科学学院;中国科学院光电研究院; |
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| 基金项目： | 国家自然科学基金资助项目(60937002); 北京市自然科学基金资助项目(4112065) |
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| 摘 要： | 提出使用飞秒激光器的光学频率梳测量绝对距离的方法.将一个飞秒激光器作为绝对距离测量的光源,搭建迈克尔逊干涉结构,利用色散干涉原理进行相应的光谱分析,得到干涉光路的光学路径差引起的相位差,最终计算出干涉光路的光学路径差.实验结果表明我们的长度测量方法精确度高,分辨力达到纳米量级.最小测量距离达到9 μm,非模糊范围达到5...
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| 关 键 词： | 绝对距离测量 飞秒激光器 光学频率梳 色散干涉 |
Absolute Distance Measurement Based on the Optical Frequency Comb of a Femtosecond Laser |
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| XU Yan,ZHOU Wei-hu,LIU De-ming,DING Lei.Absolute Distance Measurement Based on the Optical Frequency Comb of a Femtosecond Laser[J].Opto-Electronic Engineering,2011(8):79-83,89. |
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| Authors: | XU Yan ZHOU Wei-hu LIU De-ming DING Lei |
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| Affiliation: | XU Yan1,2,3,ZHOU Wei-hu3,LIU De-ming1,DING Lei3 (1.College of Optoelectronic Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China,2.College of Applied Science,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi Province,3.Academy of Opto-electronics,Chinese Academy of Science,Beijing 100094,China) |
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| Abstract: | The method of measuring absolute distance with the optical frequency comb of a femtosecond laser was proposed.A femtosecond laser was used as the light source of performing absolute distance measurement.A Michelson type interferometer structure was built.Exploiting the principle of the dispersive interference,the spectrum was analyzed.Then,the phase difference which was caused by the optical path difference of optical interference was obtained.Finally,the optical path length difference was measured.The expe... |
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| Keywords: | absolute distance measurement femtosecond laser optical frequency comb dispersive interference |
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