| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
|
|
|
|
Improvement of Laser Frequency Stabilization for the Optical Pumping Cesium Beam Standard |
| WANG Qing**, DUAN Jun, QI Xiang-Hui, ZHANG Yin, CHEN Xu-Zong |
School of Electronics Engineering and Computer Science, Peking University, Beijing 100871
|
|
| Cite this article: |
|
WANG Qing, DUAN Jun, QI Xiang-Hui et al 2015 Chin. Phys. Lett. 32 054206 |
|
|
|
|
Abstract A method is presented to improve the laser frequency stabilization for the optical pumping cesium clock. By comparing the laser frequency stabilization of different schemes, we verify that the light angle is an important factor that limits the long-term frequency stability. We minimize the drift of the light angle by using a fiber-coupled output, and lock the frequency of a distributed-feedback diode laser to the fluorescence spectrum of the atomic beam. The measured frequency stability is about 3.5 ×10?11 at 1 s and reaches 1.5 ×10?12 at 2000 s. The Allan variance keeps going down for up to thousands of seconds, indicating that the medium- and long-term stability of the laser frequency is significantly improved and perfectly fulfills the requirement for the optical pumping cesium clock.
|
|
|
Received: 11 November 2014
Published: 01 June 2015
|
|
|
|
|
|
|
|
[1] Zhang X, Huang K K, Xu H, Xu Z X, Li N and Lu X H 2012 Chin. Phys. Lett. 29 074206
[2] Qi X H, Chen W L, Yi L, Zhou D W, Zhou T, Xiao Q, Duan J, Zhou X J and Chen X Z 2009 Chin. Phys. Lett. 26 044205
[3] Corwin K L, Lu Z T, Hand C F, Epstein R J and Wieman C E 1998 Appl. Opt. 37 3295
[4] Yoshikawa Y, Umeki T, Mukae T, Torii Y and Kuga T 2003 Appl. Opt. 42 6645
[5] Queiroga F, Martins W S, Mestre V, Vidal I, Silans T P, Oriá M and Chevrollier M 2012 Appl. Phys. B 107 313
[6] Rovera G D, Santarelli G and Clairon A 1994 Rev. Sci. Instrum. 65 1502
[7] Liu X C and Boudot R 2012 IEEE Trans. Instrum. Meas. 61 2852
[8] Affolderbach C and Mileti G 2005 Rev. Sci. Instrum. 76 073108
[9] Barwood G P, Gill P and Rowley W R C 1991 Appl. Phys. B 53 142 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
