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Volume 29 Issue 5
Sep.  2013
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Influence of external cavity length variation on the lasing wavelengthof the fiber grating external cavity semiconductor laser

  • Corresponding author: WU Zheng-mao, zmwu@swnu.edu.cn
  • Received Date: 2004-07-05
    Accepted Date: 2004-09-02
  • The development of the dense wavelength division multiplexing(DWDM) technology requires that the lasing wavelength of the light source have high accuracy and stability.The lasing wavelength stability of the fiber grating external cavity semiconductor lasers(FGESLs) is focused on.After taking into account the joint contribution of semiconductor laser,external cavity and fiber grating(FG) to the phase condition,the mode distribution of the FGESLs can be determined.As a result,the effect of the FG external cavity length on the lasing wavelength of the FGESL is investigated theoretically.Numerical simulations show that for a relative short external cavity,a slight change of the external cavity length will result in an obvious variation of the lasing wavelength;and for a long external cavity(>10cm),the change of the external cavity length gives almost no effect on the lasing wavelength.
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    WU Zh M,XIA G Q.Oscillation wavelength of fiber Bragg gratingsemiconductor lasers[J].Optik,2002,113(8):348~350.
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    HASHIZUME N,NASU H.Mode hopping control and lasing wave-length stabilization of fiber grating lasers[J].Furukawa Review,2001,20:7~10.
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    TIMOFEEV F N,BAYVEL P,MIKHAILOV V et al.2.5 Gbit/s di-rectly-modulated fibre grating laser for WDM networks[J].Electron Lett,1997,33(16):1406~1407.
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    SATO T,TAKAGI T,HAMAKAWA A et al.Fiber-grating semicon-ductor laser modules for dense-WDM systems[J].IEICE Trans Elec-tron,1999,E82-C(2):357~359.
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    SATO T,YAMAMOTO F,TSUJI K et al.A uncooled external cavity diode laser for coarse-WDM access network systems[J].IEEE Photon Technol Lett,2002,14(7):1001~1003.
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    LAY T S,CHEN M H,YANG H M et al.1.55μm non-anti-reflection-coated fiber grating laser for single-longitudinal mode operation[J].Opt Quantum Electron,2002,34(7):687~696.
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    MIKHAILOV T V,BAYVEL P,WYATT R et al.Fibre grating laser-based pulse source for 40Gbit/s OTDM transmission systems[J].Electron Lett,2001,37(14):909~910.
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    WU Zh M,XIA G Q,CHEN J G.Influence of the reflectivity distribution of fiber grating on the output characteristics of fiber grating external cavity diode lasers[J].J Opt Commun,2003,24(1):22~24.
    [9] 周凯明,葛璜,安贵仁 et al.用光纤光栅作外反馈的可调谐外腔半导体激光器[J].中国激光,2001,A28(2):113~115.

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    AGRAWAL G P.Nonlinear fiber optics[M].Second Edition,San Diego:Academic Press,1995.455.
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Influence of external cavity length variation on the lasing wavelengthof the fiber grating external cavity semiconductor laser

    Corresponding author: WU Zheng-mao, zmwu@swnu.edu.cn
  • 1. School of Physics, Southwest Normal University, Chongqing 400715, China;
  • 2. The Key Laboratory for Optoelectronic Technology & System of Ministry of Education, Chongqing University, Chongqing 400044, China

Abstract: The development of the dense wavelength division multiplexing(DWDM) technology requires that the lasing wavelength of the light source have high accuracy and stability.The lasing wavelength stability of the fiber grating external cavity semiconductor lasers(FGESLs) is focused on.After taking into account the joint contribution of semiconductor laser,external cavity and fiber grating(FG) to the phase condition,the mode distribution of the FGESLs can be determined.As a result,the effect of the FG external cavity length on the lasing wavelength of the FGESL is investigated theoretically.Numerical simulations show that for a relative short external cavity,a slight change of the external cavity length will result in an obvious variation of the lasing wavelength;and for a long external cavity(>10cm),the change of the external cavity length gives almost no effect on the lasing wavelength.

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