中国物理B ›› 2010, Vol. 19 ›› Issue (1): 14216-014216.doi: 10.1088/1674-1056/19/1/014216

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Precise relative rotation sensing using slow light

王楠, 掌蕴东, 王号, 田赫, 邱巍, 王金芳, 袁萍   

  1. National Key Laboratory of Tunable Laser Technology, Institute of Opto-electronics, Harbin Institute of Technology, Harbin 150080, China
  • 收稿日期:2008-05-12 修回日期:2009-06-16 出版日期:2010-01-15 发布日期:2010-01-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 60272075, 60478014 and 60870006), and the National High Technology Research and Development Program of China (Grant No. 2007AA12Z112).

Precise relative rotation sensing using slow light

Wang Nan(王楠), Zhang Yun-Dong(掌蕴东), Wang Hao(王号), Tian He(田赫), Qiu Wei(邱巍), Wang Jin-Fang(王金芳), and Yuan Ping(袁萍)   

  1. National Key Laboratory of Tunable Laser Technology, Institute of Opto-electronics, Harbin Institute of Technology, Harbin 150080, China
  • Received:2008-05-12 Revised:2009-06-16 Online:2010-01-15 Published:2010-01-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 60272075, 60478014 and 60870006), and the National High Technology Research and Development Program of China (Grant No. 2007AA12Z112).

摘要: A novel relative rotation sensor based on slow light is proposed and analysed. A theoretical analysis shows that the high sensitivity of the proposed rotation sensor is achieved through an electromagnetically-induced-transparency medium. Unlike the tradition detection method, the idea of rotation sensing is to detect group delay between counterpropagating wave packets. It can be used to realize an ultra-precise rotation sensor.

Abstract: A novel relative rotation sensor based on slow light is proposed and analysed. A theoretical analysis shows that the high sensitivity of the proposed rotation sensor is achieved through an electromagnetically-induced-transparency medium. Unlike the tradition detection method, the idea of rotation sensing is to detect group delay between counterpropagating wave packets. It can be used to realize an ultra-precise rotation sensor.

Key words: Sagnac effect, relative rotation, group delay

中图分类号:  (Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing)

  • 07.07.Df
06.30.Bp (Spatial dimensions) 42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)