FLaser frequency stabilization and shifting by using modulation transfer spectroscopy

The stabilizing and shifting of laser frequency are very important for the interaction between the laser and atoms. The modulation transfer spectroscopy for the 87Rb atom with D2 line transition F = 2 →F＇ = 3 is used for stabilizing and shifting the frequency of the external cavity grating feedback...

Full description

Saved in:
Bibliographic Details
Published in中国物理B：英文版 no. 10; pp. 242 - 247
Main Author 程冰 王兆英 吴彬 许翱鹏 王启宇 徐云飞 林强
Format Journal Article
LanguageEnglish
Published 2014
Subjects
Rb原子
二极管激光器
产生频率
传递
激光频率
相互作用
过调制
频移
Online AccessGet full text

Cover

More Information
Summary:The stabilizing and shifting of laser frequency are very important for the interaction between the laser and atoms. The modulation transfer spectroscopy for the 87Rb atom with D2 line transition F = 2 →F＇ = 3 is used for stabilizing and shifting the frequency of the external cavity grating feedback diode laser. The resonant phase modulator with electro-optical effect is used to generate frequency sideband to lock the laser frequency. In the locking scheme, circularly polarized pump- and probe-beams are used. By optimizing the temperature of the vapor, the pump- and probe-beam intensity, the laser linewidth of 280 kHz is obtained. Furthermore, the magnetic field generated by a solenoid is added into the system. Therefore the system can achieve the frequency locking at any point in a range of hundreds of megahertz frequency shifting with very low power loss.
Bibliography:11-5639/O4
The stabilizing and shifting of laser frequency are very important for the interaction between the laser and atoms. The modulation transfer spectroscopy for the 87Rb atom with D2 line transition F = 2 →F＇ = 3 is used for stabilizing and shifting the frequency of the external cavity grating feedback diode laser. The resonant phase modulator with electro-optical effect is used to generate frequency sideband to lock the laser frequency. In the locking scheme, circularly polarized pump- and probe-beams are used. By optimizing the temperature of the vapor, the pump- and probe-beam intensity, the laser linewidth of 280 kHz is obtained. Furthermore, the magnetic field generated by a solenoid is added into the system. Therefore the system can achieve the frequency locking at any point in a range of hundreds of megahertz frequency shifting with very low power loss.
Cheng Bing, Wang Zhao-Ying, Wu Bin, Xu Ao-Peng, Wang Qi-Yu, Xu Yun-Fei and Lin Qiang（ Institute of Optics, Department of Physics, Zhejiang University, Hangzhou 310027, China）
laser stabilization, spectroscopy, diode lasers, line shapes and shifts
ISSN:1674-1056
2058-3834