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To Obtain an appropriate coherent population trapping (CPT) signal through a miniature atomic vapor cell is one of the key steps to implement a chip-scale atomic clock (CSAC). In the present experiment, the high S/N differential CPT spectral line has been achieved with a miniature atomic vapor cell through modulating the laser and extracting 87Rb atom laser interacting signal using the phase sensitive demodulation technique. With the spectral line, the dependence of CPT signal on the working parameters and the dependence of frequency stability of CSAC on the quality of the CPT signal have been studied; the obtained experimental results agree well with the theoretical prediction, which can be used as the recommended working parameters for CSAC. The methods exploited in the experiment can be implemented in the resource of a CSAC, therefore this experiment explores for CSAC the practical approaches of performance optimization.
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Keywords:
- coherent population trapping /
- atomic clock /
- laser
[1] Alzetta G, Gozzini A, Moi L, Orriols G 1976 Il Nuovo Cimento B 36 5
[2] Vanier J 2005 Appl. Phys. B 81 421
[3] Yang J, Liu G, Gu S 2012 Acta Phys. Sin. 61 043202 (in Chinese) [杨晶, 刘国宾, 顾思洪 2012 61 043202]
[4] Qu S, Zhang Y, Gu S 2013 Chin. Phys.B 22 099501
[5] Knappe S, Schwindt P D D, Shah V, Hollberg L, Kitching J, Liew L, Moreland J 2005 Opt. Express 13 1249
[6] Youngner D W, Lust L M, Carlson D R, Lu S T, Forner L J, Chanhvongsak H M, Stark T D 2007 The 14th International Conference on Solid-State Sensors, Actuators and Microsystems Lyon, France, June 10-14 2007 p39
[7] Vanier J, Kunski R, Cyr N, Savard J Y, Têtu M 1982 J. Appl. Phys. 53 5387
[8] Deng K, Guo T, He D, Liu X, Liu L, Guo D, Chen X, Wang Z 2008 Appl. Phys. Lett. 92 1104
[9] Du R, Liu G, Chen J, Gu S 2008 Spectroscopy and Spectral Analysis 28 1697 (in Chinese) [杜润昌, 刘国宾, 陈杰华, 顾思洪 2008 光谱学与光谱分析 28 1697]
[10] Liu G, Gu S 2010 J. Phys. B: At. Mol. Opt. Phys. 43 035004
[11] Hunter B A 2005 PCT Patent WO 2005/012925 A2 [2005-02-10]
[12] Du R, Liu G, Chen J, Wang J, Liu Ch Y, Gu S 2009 Acta Phys. Sin. 58 6117 (in Chinese) [杜润昌, 刘国宾, 陈杰华, 王瑾, 刘朝阳, 顾思洪 2009 58 6117]
[13] Knappe S, Kitching J, Hollberg L, Wynands R 2002 Appl. Phys. B 74 217
[14] Godone A, Levi F, Micalizio S, Vanier J 2002 Eur. Phys. J. D 18 5
[15] Boudot R, Dziuban P, Hasegawa M, Chutani R, Galliou S, Giordano V, Gorecki C 2011 J. Appl. Phys. 109 014912
[16] Rotondaro M D, Perram G P 1997 J. Quant. Spectrosc. Radiat. Transfer 57 497
[17] Vanier J, Bernier L G 1981 IEEE Trans. Instrum.Meas. 30 277
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[1] Alzetta G, Gozzini A, Moi L, Orriols G 1976 Il Nuovo Cimento B 36 5
[2] Vanier J 2005 Appl. Phys. B 81 421
[3] Yang J, Liu G, Gu S 2012 Acta Phys. Sin. 61 043202 (in Chinese) [杨晶, 刘国宾, 顾思洪 2012 61 043202]
[4] Qu S, Zhang Y, Gu S 2013 Chin. Phys.B 22 099501
[5] Knappe S, Schwindt P D D, Shah V, Hollberg L, Kitching J, Liew L, Moreland J 2005 Opt. Express 13 1249
[6] Youngner D W, Lust L M, Carlson D R, Lu S T, Forner L J, Chanhvongsak H M, Stark T D 2007 The 14th International Conference on Solid-State Sensors, Actuators and Microsystems Lyon, France, June 10-14 2007 p39
[7] Vanier J, Kunski R, Cyr N, Savard J Y, Têtu M 1982 J. Appl. Phys. 53 5387
[8] Deng K, Guo T, He D, Liu X, Liu L, Guo D, Chen X, Wang Z 2008 Appl. Phys. Lett. 92 1104
[9] Du R, Liu G, Chen J, Gu S 2008 Spectroscopy and Spectral Analysis 28 1697 (in Chinese) [杜润昌, 刘国宾, 陈杰华, 顾思洪 2008 光谱学与光谱分析 28 1697]
[10] Liu G, Gu S 2010 J. Phys. B: At. Mol. Opt. Phys. 43 035004
[11] Hunter B A 2005 PCT Patent WO 2005/012925 A2 [2005-02-10]
[12] Du R, Liu G, Chen J, Wang J, Liu Ch Y, Gu S 2009 Acta Phys. Sin. 58 6117 (in Chinese) [杜润昌, 刘国宾, 陈杰华, 王瑾, 刘朝阳, 顾思洪 2009 58 6117]
[13] Knappe S, Kitching J, Hollberg L, Wynands R 2002 Appl. Phys. B 74 217
[14] Godone A, Levi F, Micalizio S, Vanier J 2002 Eur. Phys. J. D 18 5
[15] Boudot R, Dziuban P, Hasegawa M, Chutani R, Galliou S, Giordano V, Gorecki C 2011 J. Appl. Phys. 109 014912
[16] Rotondaro M D, Perram G P 1997 J. Quant. Spectrosc. Radiat. Transfer 57 497
[17] Vanier J, Bernier L G 1981 IEEE Trans. Instrum.Meas. 30 277
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