[1] Bize S. Tests fondamentaux à l'aide d'horloges à atomes froids de rubidium et de césium (in French)[D]. Paris: University Paris, 140-147(2001).

[2] Tremine S, Guerandel S, Holleville D. et al. Limitations to the short term frequency stability in a compact cold atom clock[C]. Proceedings of the 2005 IEEE International Frequency Control Symposium and Exposition, 111-116(2005).

[3] Leveque T, Faure B, Esnault F X. et al. PHARAO laser source flight model: Design and performances[J]. Rev Sci Instrum, 86, 033104(2015). http://europepmc.org/abstract/MED/25832208

[4] Micalizio S, Godone A, Calosso C et al. Pulsed optically pumped rubidium clock with high frequency-stability performance[J]. IEEE Transactions on Ultrasonics Ferroelectric Frequency Control, 59, 457-462(2012). http://www.ncbi.nlm.nih.gov/pubmed/22481779

[5] Yabuzaki T, Mitsui T, Tanaka U. New type of high-resolution spectroscopy with a diode laser[J]. Phys Rev Lett, 67, 2453-2456(1991). http://www.ncbi.nlm.nih.gov/pubmed/10044430

[6] Kang S, Gharavipour M, Affolderbach C et al. Stability limitations from optical detection in Ramsey-type vapour-cell atomic clocks[J]. Electron Lett, 51, 1767-1769(2015). http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7308180&rowsPerPage=75

[7] Meng Yanling, Gao Yuanci, Zheng Benchang et al. Design for the integration of integrating sphere and microwave cavity[J]. Chinese J Lasers, 41, 0918001(2014).

[8] Liu Peng, Cheng Huadong, Meng Yanling et al. Research on phase modulation of Ramsey fringes in integrating sphere cold atom clocks[J]. Chinese J Lasers, 43, 1112001(2016).

[9] Meng Yanling, Cheng Huadong, Zheng Benchang et al. Controlling the shape of a cold atom cloud in a cylindrical cavity[J]. Chin Phys Lett, 30, 063701(2013). http://www.ingentaconnect.com/content/iop/cpl/2013/00000030/00000006/art063701

[10] Li Lin, Liu Peng, Ji Jingwei et al. Probe laser power stabilization for integrated sphere cold atom clock[J]. Acta Optica Sinica, 36, 0814004(2016).

[11] Wang Xucheng, Cheng Huadong, Xiao Ling et al. A new approach to measure temperature of large-scaled cold atomic cloud[J]. Acta Optica Sinica, 10, 0802001(2012).

[12] McDonald G D. Detecting atomic shot noise on ultracold atom clouds[D]. Canberra: Australian National University, 11-14(2009).

[13] Riehle F. Frequency standards: Basics and applications[M]. Weinheim: Wiley-VCH Verlag GmbH & Co. KGaA, 58-59(2004).

[14] Hu Yongqi, Dong Jing, Huang Junchao et al. Frequency noise suppression of single-frequency laser by all-fiber ring resonator[J]. Chinese J Lasers, 42, 0802012(2015).