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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/amt-2018-389
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-2018-389
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 30 Nov 2018

Research article | 30 Nov 2018

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Atmospheric Measurement Techniques (AMT).

Laser frequency stabilization based on an universal sub-Doppler NICE-OHMS instrumentation for the potential application in atmospheric Lidar

Yueting Zhou1,5, Jianxing Liu1,5, Songjie Guo1,5, Gang Zhao1,5, Weiguang Ma1,5, Zhensong Cao2, Lei Dong1,5, Lei Zhang1,5, Wangbao Yin1,5, Yongqian Wu3, Liantuan Xiao1,5, Axner Ove4, and Suotang Jia1,5 Yueting Zhou et al.
  • 1State Key Laboratory of Quantum Optics & Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan, 030006, China
  • 2Key Laboratory of Atmospheric Composition and Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, 230031, China
  • 3Institute of Optics and Electronics, Chinese Academy of Sciences, 610209, Chengdu, China
  • 4Department of Physics, Umeå University, SE-901 87 Umeå, Sweden
  • 5Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China

Abstract. Lidar is an effective tool for high altitude atmospheric measurement in which a weak absorption line for the target gas is selected to ensure a large optical depth. The laser frequency stabilization to the line center is required and a sub-Doppler (sD) spectroscopy of the target line is preferred as a frequency reference. In this paper, a novel universal sD NICE-OHMS instrumentation based on a fiber coupled optical single-sideband electro-optic-modulator (f-SSM) for the potential application in atmospheric Lidar is reported. The f-SSM can replace all frequency actuators in the system, so as to eliminate the individual design of feedback servos that often are tailored for each laser. The universality of the instrumentation was demonstrated by the alternative use of either an Er-doped fiber laser or a whispering gallery mode laser. Then the instruments based on both lasers were used to produce the sD signals of acetylene which worked as a frequency reference to stabilize the laser. By performing the lockings, relative frequency stabilizations of 8.3×10−13 and 7.5×10−13 at integration time of 240s were demonstrated.

Yueting Zhou et al.
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Yueting Zhou et al.
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A relative weak transition of target gas is often selected to ensure a large optical depth in atmospheric Lidar. Meanwhile, the laser frequency should be stabilized to the line center for a valid detection. Sub-Doppler spectroscopy is the most suitable reference to get a high-quality frequency stabilization. In this paper, a novel universal sD NICE-OHMS instrumentation based on a f-SSM is reported, which has a potential application in the atmospheric Lidar for different type of lasers.
A relative weak transition of target gas is often selected to ensure a large optical depth in...
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