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A different method of laser Doppler shift measurement is proposed. By using the sinusoidal phase-modulation, the plus and minus one-order sidebands beside the original frequency component in signal light are generated. And a beat frequency signal with fixed-frequency is present when the amplitude and phase of the modulated light are turned with Fabry-Perot interferometer. The characteristic of the amplitude of this beat frequency signal changing with the frequency is used to measure the Doppler shift. By theoretically analyzing, it can be concluded that this method can possess the advantages of both the normal coherent and non-coherent methods and also has the merits of high measuring accuracy and easy fabrication. The validity and feasibility of this method are verified experimentally, and its measurement accuracy is found experimentally to be one order of magnitude higher than that of the normal non-coherent method.
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Keywords:
- Doppler shift /
- phase-modulating /
- Fabry-Perot interferometer /
- beat frequency
[1] Jia X J, Liu F N, Fu S G, Liu Y G, Yuan S Z, Dong X Y 2007 Chin. Phys. 16 2993
[2] Han K, Xu X J, Zhou P, Ma Y X, Wang X L, Liu Z J 2011 Acta Phys. Sin. 60 074206 (in Chinese) [韩凯, 许晓军, 周朴, 马阎星, 王小林, 刘泽金 2011 60 074206]
[3] Li Y C, Zhang L, Yang Y L, Gao L, Xu B, Wang C H 2009 Acta Phys. Sin. 58 5473 (in Chinese) [李彦超, 章亮, 杨彦玲, 高龙, 徐博, 王春晖 2009 58 5473]
[4] Qin J X, Xi L X, Zhang X G, Tian F 2011 Chin. Phys. B 20 114201
[5] Wang X L, Zhou P, Ma Y X, Ma H T, Xu X J, Liu Z J, Zhao Y J 2010 Acta Phys. Sin. 59 5474 (in Chinese) [王小林, 周朴, 马阎星, 马浩统, 许晓军, 刘泽金, 赵伊君 2010 59 5474]
[6] Bai Y, Zhao W J, Ren D M, Qu Y C, Liu C, Yuan J H, Qian L M, Chen Z L 2012 Acta Phys. Sin. 61 094218 (in Chinese) [白岩, 赵卫疆, 任德明, 曲彦臣, 刘闯, 袁晋鹤, 钱黎明, 陈振雷 2012 61 094218]
[7] Shen F H, Shu Z F, Sun D S, Wang Z C, Xue X H, Chen T D, Dou X K 2012 Acta Phys. Sin. 61 030702 (in Chinese) [沈法华, 舒志峰, 孙东松, 王忠纯, 薛向辉, 陈廷娣, 窦贤康 2012 61 030702]
[8] Pu L L, Zhou Y, Sun J F, Shen B L, Lu W, Liu L R 2011 Acta Opt. Sin. 31 1228002 (in Chinese) [濮莉莉, 周 煜, 孙剑锋, 沈宝良, 鲁伟, 刘立人 2011 光学学报 31 1228002]
[9] Du J, Ren D M, Zhao W J, Qu Y C, Chen Z L, Geng L J 2013 Chin. Phys. B 22 024211
[10] Eric D B 2001 Am. J. Phys. 69 79
[11] Seel S, Storz R, Ruoso G, Mlynek J, Schiller S 1997 Phys. Rev. Lett. 78 4741
[12] Gary C B 1980 Opt. Lett. 5 15
[13] Tang L, Shu Z F, Dong J H, Wang G C, Wang Y T, Xu W J, Hu D D, Chen T D, Dou X K, Sun D S, Cha H 2010 Chin. Opt. Lett. 8 726
[14] Xia H Y, Dou X K, Sun D S, Shu Z F, Xue X H, Han Y, Hu D D, Han Y L, Cheng T D 2012 Opt. Express 20 15286
[15] Xia H, Sun D, Yang Y, Shen F, Dong J, Kobayashi T 2007 Appl. Opt. 46 7120
[16] Zhao L, Tian X J, Liang L, Zheng C T, Wang Y D 2012 J. Jilin Univ. 30 5 (in Chinese) [赵玲, 田小建, 梁磊, 郑传涛, 王一丁 2012 吉林大学学报 30 5]
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[1] Jia X J, Liu F N, Fu S G, Liu Y G, Yuan S Z, Dong X Y 2007 Chin. Phys. 16 2993
[2] Han K, Xu X J, Zhou P, Ma Y X, Wang X L, Liu Z J 2011 Acta Phys. Sin. 60 074206 (in Chinese) [韩凯, 许晓军, 周朴, 马阎星, 王小林, 刘泽金 2011 60 074206]
[3] Li Y C, Zhang L, Yang Y L, Gao L, Xu B, Wang C H 2009 Acta Phys. Sin. 58 5473 (in Chinese) [李彦超, 章亮, 杨彦玲, 高龙, 徐博, 王春晖 2009 58 5473]
[4] Qin J X, Xi L X, Zhang X G, Tian F 2011 Chin. Phys. B 20 114201
[5] Wang X L, Zhou P, Ma Y X, Ma H T, Xu X J, Liu Z J, Zhao Y J 2010 Acta Phys. Sin. 59 5474 (in Chinese) [王小林, 周朴, 马阎星, 马浩统, 许晓军, 刘泽金, 赵伊君 2010 59 5474]
[6] Bai Y, Zhao W J, Ren D M, Qu Y C, Liu C, Yuan J H, Qian L M, Chen Z L 2012 Acta Phys. Sin. 61 094218 (in Chinese) [白岩, 赵卫疆, 任德明, 曲彦臣, 刘闯, 袁晋鹤, 钱黎明, 陈振雷 2012 61 094218]
[7] Shen F H, Shu Z F, Sun D S, Wang Z C, Xue X H, Chen T D, Dou X K 2012 Acta Phys. Sin. 61 030702 (in Chinese) [沈法华, 舒志峰, 孙东松, 王忠纯, 薛向辉, 陈廷娣, 窦贤康 2012 61 030702]
[8] Pu L L, Zhou Y, Sun J F, Shen B L, Lu W, Liu L R 2011 Acta Opt. Sin. 31 1228002 (in Chinese) [濮莉莉, 周 煜, 孙剑锋, 沈宝良, 鲁伟, 刘立人 2011 光学学报 31 1228002]
[9] Du J, Ren D M, Zhao W J, Qu Y C, Chen Z L, Geng L J 2013 Chin. Phys. B 22 024211
[10] Eric D B 2001 Am. J. Phys. 69 79
[11] Seel S, Storz R, Ruoso G, Mlynek J, Schiller S 1997 Phys. Rev. Lett. 78 4741
[12] Gary C B 1980 Opt. Lett. 5 15
[13] Tang L, Shu Z F, Dong J H, Wang G C, Wang Y T, Xu W J, Hu D D, Chen T D, Dou X K, Sun D S, Cha H 2010 Chin. Opt. Lett. 8 726
[14] Xia H Y, Dou X K, Sun D S, Shu Z F, Xue X H, Han Y, Hu D D, Han Y L, Cheng T D 2012 Opt. Express 20 15286
[15] Xia H, Sun D, Yang Y, Shen F, Dong J, Kobayashi T 2007 Appl. Opt. 46 7120
[16] Zhao L, Tian X J, Liang L, Zheng C T, Wang Y D 2012 J. Jilin Univ. 30 5 (in Chinese) [赵玲, 田小建, 梁磊, 郑传涛, 王一丁 2012 吉林大学学报 30 5]
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