ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Non-crossover sub-Doppler DAVLL in selective reflection scheme |
Lin-Jie Zhang(张临杰)1,2, Hao Zhang(张好)1,2, Yan-Ting Zhao(赵延霆)1,2, Lian-Tuan Xiao(肖连团)1,2, Suo-Tang Jia(贾锁堂)1,2 |
1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China; 2 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China |
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Abstract We demonstrate a non-crossover sub-Doppler dichroic atomic vapor laser locking (DAVLL) in selective reflection scheme, which allows us to obtain a modulation-free laser locking with wide tuneable range. The dependence of peak-to-peak amplitude, tuneable range and the slope near the zero-crossing point of error signal on the frequency shift induced by the magnetic fields are studied. The adjustable error signal by the varying external magnetic field can offer the laser locking from the order of tens MHz to hundreds MHz. The ultimate dither of locked laser frequency is less than 0.5 MHz. The square root of Allan variance of the error signals reaches a minimum of 3×10-10 for an averaging time of 130 s.
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Received: 20 March 2019
Revised: 06 May 2019
Accepted manuscript online:
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PACS:
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42.62.Fi
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(Laser spectroscopy)
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78.40.-q
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(Absorption and reflection spectra: visible and ultraviolet)
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32.10.Fn
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(Fine and hyperfine structure)
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32.30.-r
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(Atomic spectra?)
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Fund: Project supported by the National Key Research and Development Program of China (Grant Nos. 2017YFA0304203 and 2016YFF0200104), the National Natural Science Foundation of China (Grant No. 61827824), the Fund from the BAIREN Plan of Shanxi Province, China, and the Funding for Shanxi “1331 Project” Key Subjects Construction, China. |
Corresponding Authors:
Yan-Ting Zhao
E-mail: zhaoyt@sxu.edu.cn
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Cite this article:
Lin-Jie Zhang(张临杰), Hao Zhang(张好), Yan-Ting Zhao(赵延霆), Lian-Tuan Xiao(肖连团), Suo-Tang Jia(贾锁堂) Non-crossover sub-Doppler DAVLL in selective reflection scheme 2019 Chin. Phys. B 28 084211
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