A High-stability Compact Optical System for Integrating Sphere Cold Atom Clock
- Resource Type
- Conference
- Authors
- Wang, Xiumei; He, Jin; Wang, Yunjia; Wang, Wenming; Wang, Yifei; Li, Shiguang; Wang, Weili; Liu, Guodong; Zhu, Xi; Zhang, Chengyuan; Chen, Yanjun; Wang, Liang; Liu, Yaxuan; Gao, Lianshan; Chen, Jingbiao
- Source
- 2022 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS) European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS), 2022 Joint Conference of the. :1-4 Apr, 2022
- Subject
- Aerospace
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Integrated optics
Time-frequency analysis
Atom optics
Semiconductor lasers
Optical feedback
Laser feedback
Distributed feedback devices
cold atom clock
optical system
laser stabilization
compactness
- Language
- ISSN
- 2327-1949
SummaryA high-stability compact optical system is proposed for integrating sphere cold atom clock. Both an extended cavity diode laser with linewidth of about 50 kHz and a distribution feedback Bragg laser are applied as laser sources. The frequency of the former is locked with high frequency stability of the 10 −13 level between 1~10 4 s averaging time. A new scheme of laser frequency stabilization and shift is realized and the laser power is stabilized to the 10 −5 level between 1~10 4 s averaging time. The reasonable arrangement of the optical paths enables a compact system with a total size of 500mm×500mm×200mm.