| 大气光学湍流光纤测量技术中的解调算法研究 |
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| 引用本文： | 郝磊,梅海平,钱仙妹,朱文越,饶瑞中.大气光学湍流光纤测量技术中的解调算法研究[J].光子学报,2008,37(11):2292-2295. |
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| 作者姓名： | 郝磊 梅海平 钱仙妹 朱文越 饶瑞中 |
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| 作者单位： | 1. 中国科学院安徽光学精密机械研究所,合肥,230031;中国科学院研究生院,北京,100049
2. 中国科学院安徽光学精密机械研究所,合肥,230031 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，中国科学院长专项基金 |
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| 摘 要： | 介绍了直接调制光源型光纤Mach-Zehnder干涉仪测量大气光学湍流的原理,并对其中的载频调制和解调的过程进行了深入的研究.通过计算机对光学湍流随机相位起伏、载频调制与解调过程的模拟证明了直接调制光源型光纤Mach-Zehnder干涉仪测量大气光学湍流的可行性,提出大气光学湍流光纤测量技术中的一种新的信号处理方法.
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| 关 键 词： | 大气光学湍流 折射率起伏 光纤Mach-Zehnder干涉仪 调制解调 |
| 收稿时间： | 2007-07-03 |
| 修稿时间： | 2007-09-10 |
Demodulation Algorithm for the Measurement of Atmospheric Optical Turbulence with Fiber Optics |
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| HAO Lei,MEI Hai-ping,QIAN Xian-mei,ZHU Wen-yue,RAO Rui-zhong.Demodulation Algorithm for the Measurement of Atmospheric Optical Turbulence with Fiber Optics[J].Acta Photonica Sinica,2008,37(11):2292-2295. |
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| Authors: | HAO Lei MEI Hai-ping QIAN Xian-mei ZHU Wen-yue RAO Rui-zhong |
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| Institution: | HAO Lei1,2,MEI Hai-ping1,QIAN Xian-mei1,ZHU Wen-yue1,RAO Rui-zhong1(1 Anhui Institute of Optics , Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China)(2 University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | Principle of measuring atmospheric optical turbulence by using fiber Mach-Zehnder interferometer with a directly modulated light source was introduced.The processes of carrier frequency modulation and demodulation were also deeply researched.Through the computer simulation of the optical turbulence induced phase fluctuation,carrier frequency modulation and demodulation,the feasibility of measuring atmospheric optical turbulence by the principle was demonstrated.And,a new signal processing procedure for the algorithm was proposed. |
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| Keywords: | Atmospheric optical turbulence Refractive index fluctuations Fiber Mach-Zehnder interferometer Modulation and Demodulation |
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