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Single photon wavelength modulation absorption spectrum of acetylene for 1.5 m laser wavelength stabilization

Wang Xiao-Bo Ma Wei-Guang Wang Jing-Jing Xiao Lian-Tuan Jia Suo-Tang

Single photon wavelength modulation absorption spectrum of acetylene for 1.5 m laser wavelength stabilization

Wang Xiao-Bo, Ma Wei-Guang, Wang Jing-Jing, Xiao Lian-Tuan, Jia Suo-Tang
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Publishing process
  • Received Date:  25 June 2011
  • Accepted Date:  28 May 2012
  • Published Online:  05 May 2012

Single photon wavelength modulation absorption spectrum of acetylene for 1.5 m laser wavelength stabilization

  • 1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Laser Spectroscopy Laboratory, Shanxi University, Taiyuan 030006, China
Fund Project:  Project supported by the National Basic Research Program of China (973 Program) (Grant Nos. 2012CB921603, 2010CB923103), the National Natural Science Foundation of China (Grant Nos. 11174187, 61178009, 60908019, 10934004), NSFC Project for Excellent Research Team (Grant No. 60821004), the Natural Science Foundation of Shanxi Province, China (Grant No. 2011091016), TSTIT and TYMIT of Shanxi, and Shanxi Province Foundation for Returned Scholars.

Abstract: We describe a kHz single photon wavelength modulation technology to realize the locking reference signal of the laser frequency. By detecting the single photon acetylene gas absorption spectrum and by amplifying the lock-in the discrete single photon response pulse, we achieve the laser frequency stabilized in real time. The 1.5 m distribution feedback semiconductor laser output frequency is stabilized at acetylene gas absorption peaks, and the typical laser frequency fluctuation is less than 25 MHz within 175 s. This single photon wavelength modulated absorption spectrum technology eliminates the high background noise in low frequency range and can be used in the quantum communication system and optical wavelength division multiplex.

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