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Volume 28 Issue 5
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Citation:
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Study on the characteristics of cavity-dumped RF waveguide CO2 laser

  • 1.

    Department of Optoelectronics, Sichuan University, Chengdu 610064, China;

  • 2.

    Southwest Institute of Technical Physics, Chengdu 610041, China

  • Received Date: 2003-12-08
    Accepted Date: 2004-02-04
  • Several parameters that affect the output pulse characteristics of electro-optically(E-O) cavity-dumped RF waveguide laser have been discussed.By changing the rising time of high voltage pulse in CdTe crystal and reflectivity of Brewster window,the varieties of output pulse width and peak power of cavity-dumped laser are theoretically studied.By changing these parameters,in a home-made CdTe E-O cavity-dumped double-channel RF excited CO2 waveguide laser,which might be used as a light sources in a heterodyne imaging lidar system,we have obtained the cavity dumped pulses width at FWHM from 20ns to 30ns.
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  • [1] AHLBERG H,LUNDQVIST S,LETALICK D et al.Imaging Q-switched CO2 laser radar with heterodyne detection:design and evaluation[J].Appl Opt,1986,25(17):2891～2892.[2] PEARSON G N,RYE B J.Frequency fidelity of a compact CO2 Doppler lidar transmitter[J].Appl Opt,1992,31(30):6475～6484.[3] CHOI J W,JUAN Y B,STRZELE S et al.Frequency stabilizationof excited CO2 lasers[J].SPIE,2002,3729:786～787.[4] 刘敬海,徐敬普.激光器件与技术[M].北京:北京理工大学出版社,1995.164～167.[5] 叶青,胡渝,曾昭信 et al.碲化镉电光调制器性能研究[J].红光技术,1996,18(6):7～10.[6] 克希耐尔 W.固体激光工程[M].北京:科学出版社,2003.422～424.[7] 田兆硕,王骐,王雨三.电光腔倒空与调Q射频波导CO2激光器[J].光学学报,2000,20(12):1613～1616.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Study on the characteristics of cavity-dumped RF waveguide CO2 laser

  • 1. Department of Optoelectronics, Sichuan University, Chengdu 610064, China;
  • 2. Southwest Institute of Technical Physics, Chengdu 610041, China
  • Received Date: 2003-12-08
  • Accepted Date: 2004-02-04
  • Available Online: 2004-09-25

Abstract: Several parameters that affect the output pulse characteristics of electro-optically(E-O) cavity-dumped RF waveguide laser have been discussed.By changing the rising time of high voltage pulse in CdTe crystal and reflectivity of Brewster window,the varieties of output pulse width and peak power of cavity-dumped laser are theoretically studied.By changing these parameters,in a home-made CdTe E-O cavity-dumped double-channel RF excited CO2 waveguide laser,which might be used as a light sources in a heterodyne imaging lidar system,we have obtained the cavity dumped pulses width at FWHM from 20ns to 30ns.

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