Chin. Phys. B, 2008, Vol. 17(1): 152-157    DOI: 10.1088/1674-1056/17/1/027
 ATOMIC AND MOLECULAR PHYSICS Prev   Next

# Analysis of the influence of various effects on frequency shifts of the acetylene saturated absorption lines

Dong Lei, Zhang Lei, Dou Hai-Peng, Yin Wang-Bao, Jia Suo-Tang
State Key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and\Electronics Engineering, Shanxi University, Taiyuan 030006, China
Abstract  Frequency shifts of the acetylene saturated absorption lines at 1.5\,$\mu$m with temperature, gas pressure and laser power have been investigated in detail. The second-order Doppler effect, the recoil effect, the Zeeman effect, the pressure shift and the power shift are taken into consideration. The magnitudes of those shifts caused by various effects are evaluated. In order to reproduce the stability of $5.7\times10^{ - 14}$ obtained by Edwards, all necessary conditions are given. The results show that when there is a larger external magnetic field, the Zeeman shift could not be neglected, so that the shield should be employed. And the design of a long cavity is advantageous to reduce the influence of the second-order Doppler effect. The results also show that at least $\pm$2.5\du\ temperature control for cavity can effectively prevent several effects and improve the frequency stability.
Published:  20 January 2008
 PACS: 33.57.+c (Magneto-optical and electro-optical spectra and effects) 33.70.Jg (Line and band widths, shapes, and shifts) 33.80.-b (Photon interactions with molecules)
Fund: Project supported by the Provincial Natural Science Funds of Shanxi Province, China (Grant No 20041037) and the Industrial R{\&}D Programme of Shanxi Province, China (Grant No 2006031118-04).