中国物理B ›› 2016, Vol. 25 ›› Issue (5): 53201-053201.doi: 10.1088/1674-1056/25/5/053201

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Laser frequency locking based on Rydberg electromagnetically induced transparency

Yuechun Jiao(焦月春), Jingkui Li(李敬奎), Limei Wang(王丽梅), Hao Zhang(张好), Linjie Zhang(张临杰), Jianming Zhao(赵建明), Suotang Jia(贾锁堂)   

  1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
  • 收稿日期:2015-12-02 修回日期:2016-01-16 出版日期:2016-05-05 发布日期:2016-05-05
  • 通讯作者: Jianming Zhao E-mail:zhaojm@sxu.edu.cn
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2012CB921603), the National Natural Science Foundation of China (Grants Nos. 11274209, 61475090, 61378039, and 61378013), and the Research Project Supported by Shanxi Scholarship Council of China (Grant No. 2014-009).

Laser frequency locking based on Rydberg electromagnetically induced transparency

Yuechun Jiao(焦月春), Jingkui Li(李敬奎), Limei Wang(王丽梅), Hao Zhang(张好), Linjie Zhang(张临杰), Jianming Zhao(赵建明), Suotang Jia(贾锁堂)   

  1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
  • Received:2015-12-02 Revised:2016-01-16 Online:2016-05-05 Published:2016-05-05
  • Contact: Jianming Zhao E-mail:zhaojm@sxu.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2012CB921603), the National Natural Science Foundation of China (Grants Nos. 11274209, 61475090, 61378039, and 61378013), and the Research Project Supported by Shanxi Scholarship Council of China (Grant No. 2014-009).

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摘要： We present a laser frequency locking to Rydberg transition with electromagnetically induced transparency (EIT) spectra in a room-temperature cesium vapor cell. Cesium levels 6S1/2, 6P3/2, and the nD5/2 state, compose a cascade three-level system, where a coupling laser drives Rydberg transition, and probe laser detects the EIT signal. The error signal, obtained by demodulating the EIT signal, is used to lock the coupling laser frequency to Rydberg transition. The laser frequency fluctuation, ~0.7 MHz, is obtained after locking on, with the minimum Allan variance to be 8.9× 10-11. This kind of locking method can be used to stabilize the laser frequency to the excited transition.

关键词: Rydberg, electromagnetically induced transparency (EIT), laser locking

Abstract: We present a laser frequency locking to Rydberg transition with electromagnetically induced transparency (EIT) spectra in a room-temperature cesium vapor cell. Cesium levels 6S1/2, 6P3/2, and the nD5/2 state, compose a cascade three-level system, where a coupling laser drives Rydberg transition, and probe laser detects the EIT signal. The error signal, obtained by demodulating the EIT signal, is used to lock the coupling laser frequency to Rydberg transition. The laser frequency fluctuation, ~0.7 MHz, is obtained after locking on, with the minimum Allan variance to be 8.9× 10-11. This kind of locking method can be used to stabilize the laser frequency to the excited transition.

Key words: Rydberg, electromagnetically induced transparency (EIT), laser locking

中图分类号:  (Rydberg states)

  • 32.80.Ee
42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption) 31.15.es (Applications of density-functional theory (e.g., to electronic structure and stability; defect formation; dielectric properties, susceptibilities; viscoelastic coefficients; Rydberg transition frequencies))