Integrated physics package of a chip-scale atomic clock

doi:10.1088/1674-1056/23/7/074302

Abstract The physics package of a chip-scale atomic clock (CSAC) has been successfully realized by integrating vertical cavity surface emitting laser (VCSEL), neutral density (ND) filter, λ/4 wave plate, ⁸⁷Rb vapor cell, photodiode (PD), and magnetic coil into a cuboid metal package with a volume of about 2.8 cm³. In this physics package, the critical component, ⁸⁷Rb vapor cell, is batch-fabricated based on MEMS technology and in-situ chemical reaction method. Pt heater and thermistors are integrated in the physics package. A PTFE pillar is used to support the optical elements in the physics package, in order to reduce the power dissipation. The optical absorption spectrum of ⁸⁷Rb D1 line and the microwave frequency correction signal are successfully observed while connecting the package with the servo circuit system. Using the above mentioned packaging solution, a CSAC with short-term frequency stability of about 7× 10^-10τ^-1/2 has been successfully achieved, which demonstrates that this physics package would become one promising solution for the CSAC.

Keywords: chip-scale atomic clock (CSAC) physics package ⁸⁷Rb vapor cell coherent population trapping (CPT)

Received: 29 August 2013
Revised: 23 December 2013
Accepted manuscript online:

PACS:	43.58.Hp	(Tuning forks, frequency standards; frequency measuring and recording instruments; time standards and chronographs)
	32.80.Qk	(Coherent control of atomic interactions with photons)
	32.30.Bv	(Radio-frequency, microwave, and infrared spectra)
	85.30.De	(Semiconductor-device characterization, design, and modeling)

Fund: Project supported by the Knowledge Innovation Project of Chinese Academy of Sciences (Grant No. KGCX2-YW-143).

Corresponding Authors: Wu Ya-Ming
E-mail: yamingwu@mail.sim.ac.cn

About author: 43.58.Hp; 32.80.Qk; 32.30.Bv; 85.30.De

Cite this article:

Li Shao-Liang (李绍良), Xu Jing (徐静), Zhang Zhi-Qiang (张志强), Zhao Lu-Bing (赵璐冰), Long Liang (龙亮), Wu Ya-Ming (吴亚明) Integrated physics package of a chip-scale atomic clock 2014 Chin. Phys. B 23 074302

[1]	Lutwak R, Emmons D, Riley W and Garvey R M 2002 34th Annual Precise Time and Time Interval (PTTI) Meeting, Reston, Virginia, p. 539
[2]	Liew L, Knappe S, Moreland J, Robinson H, Hollberg L and Kitching J 2004 Appl. Phys. Lett. 84 2694
[3]	Knappe S, Shah V, Schwindt P D D, Hollberg L and Kitching J 2004 Appl. Phys. Lett. 85 1460
[4]	Gerginov V, Knappe S, Schwindt P D D, Shah V, Liew L, Moreland J, Robinson H G, Hollberg L, Kitching J, Brannon A, Breitbarth J and Popovic Z 2005 2005 IEEE International Frequency Control Symposium and Exhibition, Vancouver, Canada, p. 758
[5]	Knappe S, Schwindt P D D, Shah V, Hollberg L, Kitching J, Liew L and Moreland J 2005 Opt. Express 13 1249
[6]	Lutwak R, Deng J, Riley W, Varghese M, Leblanc J, Tepolt G, Mescher M, Serkland D K, Geib K M and Peake G M 2004 36th Annual Precise Time and Time Interval (PTTI) Meeting, Washington DC, USA, p. 339
[7]	Mescher M, Lutwak R and Varghese M 2005 The Draper Technology Digest 10 26
[8]	Lutwak R, Vlitas P, Varghese M, Mescher M, Serkland D K and Peake G M 2005 IEEE International Frequency Control Symposium and Exhibition, Vancouver, Canada, p. 752
[9]	Knapkiewicz P, Dziuban J, Walczak R, Mauri L, Dziuban P and Gorecki C 2010 Procedia Engineering of Eurosensors Conference, Linz, Austria, p. 721
[10]	Vecchio F, Venkatraman V, Shea H, Maeder T and Ryser P 2010 Procedia Engineering of Eurosensors Conference, Linz, Austria, p. 367
[11]	Straessle R, Pellaton M, Affolderbach C, Petremandet Y, Briand D and Mileti G 2013 J. Appl. Phys. 113 064501
[12]	Su J, Deng K, Guo D Z, Wang Z, Chen J, Zhang G M and Chen X Z 2010 Chin. Phys. B 19 110701
[13]	Liu Z, Wang J Y, Diao W T, He J and Wang J M 2013 Chin. Phys. B 22 043201
[14]	Xu Z X, Qu W Z, Gao R, Hu X H and Xiao Y H 2013 Chin. Phys. B 22 033202

[1]	Ramsey-coherent population trapping Cs atomic clock based on lin\|\|lin optical pumping with dispersion detection Peng-Fei Cheng(程鹏飞), Jian-Wei Zhang(张建伟), Li-Jun Wang(王力军). Chin. Phys. B, 2019, 28(7): 070601.
[2]	Dependence of the ⁸⁵Rb coherent population trapping resonance characteristic on the pressure of N₂ buffer gas Qu Su-Ping (屈苏平), Zhang Yi (张奕), Gu Si-Hong (顾思洪). Chin. Phys. B, 2013, 22(9): 099501.
[3]	Characterizing passive coherent population trapping resonance in cesium vapor cell filled with neon as buffer gas Liu Zhi (刘智), Wang Jie-Ying (王杰英), Diao Wen-Ting (刁文婷), He Jun (何军), Wang Jun-Min (王军民). Chin. Phys. B, 2013, 22(4): 043201.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Metrics
Related Articles

Integrated physics package of a chip-scale atomic clock

Cite this article:

Online attention