Advances of chip-scale atomic clock in Peking University

Author

Zhao Jianye ; Zhang Yaolin ; Lu Haoyuan ; Hou Dong ; Zhang Shuangyou ; Wang Zhong

Author_Institution

Dept. of Electron., Peking Univ., Beijing, China

fYear

2015

fDate

12-16 April 2015

Firstpage

462

Lastpage

464

Abstract

The authors are developing chip-scale atomic clocks (CSACs) based on the ⁸⁵Rb coherent population trap (CPT) transition. As an intermediate milestone, we have developed a miniature atomic clock prototype. In this paper, we report on the design combing the miniature physics part, low-power digital control circuits and low-power microwave system, and the process that enable an atomic clock to be made with an overall size of 20 cm³ volume, power consumption about 400 mWatts, and an Allen Deviation at 100 s of 2.9E-11.

Keywords

atomic clocks; digital circuits; digital control; low-power electronics; microwave circuits; Allen Deviation; chip-scale atomic clock; low-power digital control circuits; low-power microwave system; power consumption; rubidium-85 coherent population trap transition; Atomic clocks; Circuit stability; Laser stability; Physics; Power demand; Radio frequency; Vertical cavity surface emitting lasers; Atomic clocks; CPT; CSAC; MEMS;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium & the European Frequency and Time Forum (FCS), 2015 Joint Conference of the IEEE International

Conference_Location

Denver, CO

Print_ISBN

978-1-4799-8865-5

Type

conf

DOI

10.1109/FCS.2015.7138882

Filename

7138882