On the basis of the complex cavity model, the feedback-induced instabilities which may cause coherence collapse in single-mode distributed feedback (DFB) fiber laser sensors are analyzed. We measure the longitudinal operating mode and the frequency shift of DFB fiber laser due to Rayleigh backscattering, and obtain quantitative agreement between simulation and experiments in long-time investigations. All these study can provide references to design a novel form of DFB fiber laser sensor system utilizing external optical feedback, and the feasibility of the sensor has been proved.


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    Titel :

    Coherence-collapse characteristics of single-mode DFB fiber laser sensors with external optical feedback


    Beteiligte:
    Liu, Wen (Autor:in) / Ma, Lina (Autor:in) / Yang, Huayong (Autor:in)

    Kongress:

    2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications ; 2011 ; Beijing,Beijing,China


    Erschienen in:

    Erscheinungsdatum :

    2011-11-22





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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