• Chinese Journal of Lasers
  • Vol. 49, Issue 7, 0701003 (2022)
Gang Jin1、*, Yongjie Cheng1, Chengzu Huang1, Xingxun Liu1, Wanquan Qi1, and Jun He2、3
Author Affiliations
  • 1Beijing Institute of Radio Metrology and Measurement, Beijing 100039, China
  • 2State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan, Shanxi 030006, China
  • 3Collaborative Innovation Center of Extreme Optics of the Ministry of Education and Shanxi Province, Shanxi University, Taiyuan, Shanxi 030006, China
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    DOI: 10.3788/CJL202249.0701003 Cite this Article Set citation alerts
    Gang Jin, Yongjie Cheng, Chengzu Huang, Xingxun Liu, Wanquan Qi, Jun He. Generation of Laser System Using for Rydberg Atom Excitation[J]. Chinese Journal of Lasers, 2022, 49(7): 0701003 Copy Citation Text show less

    Abstract

    Conclusions

    In ladder type EIT, decreasing probe optical power and increasing coupling beam power can minimize the population of the middle state in vapor cell. This is essential for the lifetime of coherent state between Rydberg atom and ground state. Due to the broadening of the atomic spectral by increasing probe power, we set the probe power below the saturated intensity. In comparison, the EIT peak increases as the coupling laser power increases; however, the spectrum linewidth is only broadened slightly. For a high electric-field strength, we should increase the coupling laser power to distinguish AT splitting peaks. We have developed strong engineering applicability and high stability Rydberg atomic excitation light system based on CEDL. The laser linewidth is about tens of kHz, with a flexible wavelength tuning, providing fast and slow feedback channels for locking center frequency. The 1018 nm CEDL is the ideal seed laser for YDFA. Based on the fiber-coupled single-pass crystal frequency doubling, the power of the single-frequency narrow line width of 509 nm laser is about 470 mW. Meanwhile, its power and the linewidth parameter can meet the Cs atomic Rydberg atom EIT spectrum applications. The preparation and optimization of EIT signal measurement is the next step in building a reliable microwave field strength measurement system based on the above laser system.

    Gang Jin, Yongjie Cheng, Chengzu Huang, Xingxun Liu, Wanquan Qi, Jun He. Generation of Laser System Using for Rydberg Atom Excitation[J]. Chinese Journal of Lasers, 2022, 49(7): 0701003
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