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High-accuracy distance measurement plays an important role in many applications, such as industry measurement, Aerospace and scientific research. The continual development oflaser ranging technique is always a frontier topic of geometric measurement, therefore this paper develops the application of femtosecond optical frequency comb for length measurement. Time-of-flight principle for distance measurement is widely used by pulse laser, however, achievable resolution reaches only a few millimeters at best due to the limited bandwidth of electronics. In this paper, the temporal coherence of multiple pulse train is analyzed, and an arbitrary and absolute length measurement system is set up based on modified Michelson interferometer by combining multiple pulse train interference and time-of-flight method. The timing difference is separately calculated by the first-order and second-order optical cross-correlation signals, therefore the absolute distance is calculated. An experiment is conducted by measuring a 60 cm length, and the measurement result is compared with a high precision laser displacement sensor. The result shows a good measuring linearity, and the measurement precision of ±0.5 μm is achieved.
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Keywords:
- femtosecond optical frequency comb /
- arbitrary and absolute length measurement /
- time-of-flight /
- multiple pulse train interference
[1] Zhang Y C, Wu J Z, Li Y Q, Jin L, Ma J, Wang L R, Zhao Y T, Xiao L T, Jia S T 2012 Chin. Phys. B 21 113701
[2] Yi L, Yuan J, Qi X H, Chen W L, Zhou D W, Zhou T, Zhou X J, Chen X Z 2009 Chin. Phys. B 18 1409
[3] Zhang J T, Wu X J, Li Y, Wei H Y 2012 Acta Phys. Sin. 61 100601 (in Chinese) [张继涛, 吴学建, 李岩, 尉昊赟 2012 61 100601]
[4] Meng F, Cao S Y, Cai Y, Wang G Z, Cao J P, Li T C, Fang Z J 2011 Acta Phys. Sin. 60 100601 (in Chinese) [孟飞, 曹士英, 蔡岳, 王贵重, 曹建平, 李天初, 方占军 2011 60 100601]
[5] Fang Z J, Wang Q, Wang M M, Meng F, Lin B K, Li T C 2007 Acta Phys. Sin. 56 5684 (in Chinese) [方占军, 王强, 王民明, 孟飞, 林百科, 李天初 2007 56 5684]
[6] Qin P, Chen W, Song Y J, Hu M L, Chai L, Wang Q Y 2012 Acta Phys. Sin. 61 240601 (in Chinese) [秦鹏, 陈伟, 宋友建, 胡明列, 柴路, 王清月 2012 61 240601]
[7] Wang G C, Yan S H, Yang J, Lin C B, Yang D X, Zou P F 2013 Acta Phys. Sin. 62 070601 (in Chinese) [王国超, 颜树华, 杨俊, 林存宝, 杨东兴, 邹鹏飞 2013 62 070601]
[8] Lee J H, Kim Y J, Lee K, Lee S, Kim S W 2010 Nat. Photonics 4 716
[9] Berg van den S A, Persijn S T, Kok G J P 2012 Phys. Rev. Lett. 108 183901
[10] Matsumoto H, Wang X N, Takamasu K, Aoto T 2012Appl. Phys. Express 5 046601
[11] Coddington I, Swann W C, Nenadovic L, Newbury N R 2009 Nat. Photonics 3 351
[12] Salvadé Y, Schuhler N, Lévêque S, Floch L S 2008 Appl. Optics 47 2715
[13] Minoshima K, Matsumoto H 2000 Appl. Optics 39 5512
[14] Joo K N, Kim S W 2006 Opt. Express 14 5954
[15] Joo K N, Kim Y, Kim S W 2008Opt. Express 16 19799
[16] Ye J 2004 Opt. Lett. 29 1153
[17] Cui M, Schouten R N, Bhattacharya N, Berg van den S A 2008 J. Eur. Opt. Soc-rapid 3 08003
[18] Dong W, Takahashi S, Takamasu K, Matsumoto H 2011 Opt. Express 19 4881
[19] Kilpelä A, Pennala R, Kostamovaara J 2001 Rev. Sci. Instrum 72 2197
[20] Dong W, Takahashi S, Takamasu K, Matsumoto H 2009 Opt. Express 17 7012
[21] Dong W, Takahashi S, Takamasu K, Matsumoto H 2011Jpn. J. Appl. 50 022701
[22] Dong W, Matsumoto H 2012 J. Europ. Opt. Soc. Rap. 7 12050
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[1] Zhang Y C, Wu J Z, Li Y Q, Jin L, Ma J, Wang L R, Zhao Y T, Xiao L T, Jia S T 2012 Chin. Phys. B 21 113701
[2] Yi L, Yuan J, Qi X H, Chen W L, Zhou D W, Zhou T, Zhou X J, Chen X Z 2009 Chin. Phys. B 18 1409
[3] Zhang J T, Wu X J, Li Y, Wei H Y 2012 Acta Phys. Sin. 61 100601 (in Chinese) [张继涛, 吴学建, 李岩, 尉昊赟 2012 61 100601]
[4] Meng F, Cao S Y, Cai Y, Wang G Z, Cao J P, Li T C, Fang Z J 2011 Acta Phys. Sin. 60 100601 (in Chinese) [孟飞, 曹士英, 蔡岳, 王贵重, 曹建平, 李天初, 方占军 2011 60 100601]
[5] Fang Z J, Wang Q, Wang M M, Meng F, Lin B K, Li T C 2007 Acta Phys. Sin. 56 5684 (in Chinese) [方占军, 王强, 王民明, 孟飞, 林百科, 李天初 2007 56 5684]
[6] Qin P, Chen W, Song Y J, Hu M L, Chai L, Wang Q Y 2012 Acta Phys. Sin. 61 240601 (in Chinese) [秦鹏, 陈伟, 宋友建, 胡明列, 柴路, 王清月 2012 61 240601]
[7] Wang G C, Yan S H, Yang J, Lin C B, Yang D X, Zou P F 2013 Acta Phys. Sin. 62 070601 (in Chinese) [王国超, 颜树华, 杨俊, 林存宝, 杨东兴, 邹鹏飞 2013 62 070601]
[8] Lee J H, Kim Y J, Lee K, Lee S, Kim S W 2010 Nat. Photonics 4 716
[9] Berg van den S A, Persijn S T, Kok G J P 2012 Phys. Rev. Lett. 108 183901
[10] Matsumoto H, Wang X N, Takamasu K, Aoto T 2012Appl. Phys. Express 5 046601
[11] Coddington I, Swann W C, Nenadovic L, Newbury N R 2009 Nat. Photonics 3 351
[12] Salvadé Y, Schuhler N, Lévêque S, Floch L S 2008 Appl. Optics 47 2715
[13] Minoshima K, Matsumoto H 2000 Appl. Optics 39 5512
[14] Joo K N, Kim S W 2006 Opt. Express 14 5954
[15] Joo K N, Kim Y, Kim S W 2008Opt. Express 16 19799
[16] Ye J 2004 Opt. Lett. 29 1153
[17] Cui M, Schouten R N, Bhattacharya N, Berg van den S A 2008 J. Eur. Opt. Soc-rapid 3 08003
[18] Dong W, Takahashi S, Takamasu K, Matsumoto H 2011 Opt. Express 19 4881
[19] Kilpelä A, Pennala R, Kostamovaara J 2001 Rev. Sci. Instrum 72 2197
[20] Dong W, Takahashi S, Takamasu K, Matsumoto H 2009 Opt. Express 17 7012
[21] Dong W, Takahashi S, Takamasu K, Matsumoto H 2011Jpn. J. Appl. 50 022701
[22] Dong W, Matsumoto H 2012 J. Europ. Opt. Soc. Rap. 7 12050
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