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Note: A simple magnetic field design for dichroic atomic vapor laser lock
Teng Xiao1, Tong Wang1, Bo Yan1
1Department of Physics, Zhejiang University, Hangzhou, Zhejiang 310027, China.
The Review of Scientific Instruments
|May 3, 2018
Summary
A new, simple magnetic design using permanent magnetic balls effectively creates the necessary bias field for dichroic atomic vapor laser lock (DAVLL) frequency stabilization. This method is easy to adjust and suitable for DAVLL applications.
Area of Science:
- Atomic, Molecular, and Optical Physics
- Laser Spectroscopy
- Quantum Optics
Background:
- Frequency stabilization is crucial for precision measurements in atomic physics.
- The dichroic atomic vapor laser lock (DAVLL) is an effective technique for laser frequency stabilization.
- DAVLL typically requires a bias magnetic field of approximately 100 G to generate an error signal.
Purpose of the Study:
- To present a simple and adjustable design for generating the bias magnetic field required for DAVLL.
- To demonstrate the suitability of permanent magnetic balls for creating this bias field.
Main Methods:
- Utilized permanent magnetic balls to construct a bias field source.
- Designed a system for easy adjustment of the magnetic field magnitude.
- Integrated the magnetic field source with the DAVLL setup.
Main Results:
- Successfully generated a bias magnetic field suitable for DAVLL using permanent magnetic balls.
- The design proved to be simple and allowed for straightforward adjustment of the field strength.
- The DAVLL system demonstrated insensitivity to minor variations in the bias field, confirming the design's suitability.
Conclusions:
- A simple, adjustable bias field design using permanent magnetic balls is suitable for DAVLL frequency stabilization.
- This magnetic design offers a practical and effective solution for DAVLL applications.
- The ease of implementation and adjustment makes this method advantageous for researchers.
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