| ATOMIC AND MOLECULAR PHYSICS |
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Stabilization and Shift of Frequency in an External Cavity Diode Laser with Solenoid-Assisted Saturated Absorption |
HAN Shun-Li, CHENG Bing, ZHANG Jing-Fang, XU Yun-Fei, WANG Zhao-Ying,
LIN Qiang |
| Institute of Optics, Department of Physics, Zhejiang University, Hangzhou 310027 |
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| Cite this article: |
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HAN Shun-Li, CHENG Bing, ZHANG Jing-Fang et al 2009 Chin. Phys. Lett. 26 063201 |
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Abstract A simple method to realize both stabilization and shift of the frequency in an external cavity diode laser (ECDL) is reported. Due to the Zeeman effect, the saturated absorption spectrum of Rb atoms in a magnetic field is shifted. This shift can be used to detune the frequency of the ECDL, which is locked to the saturated absorption spectrum. The frequency shift amount can be controlled by changing the magnetic field for a specific polarization state of the laser beam. The advantages of this tunable frequency lock include low laser power requirement, without additional power loss, cheapness, and so on.
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| Keywords:
32.60.+i
42.62.Fi
06.30.Ft
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Received: 16 January 2009
Published: 01 June 2009
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