With the advantage of relative low-cost, multi-longitudinal Fabry-Perot laser diodes are widely used in optical communication system. However, the multi-mode characteristics such as multi-mode excitation and mode competition limit the speed or the distance in transmission. Therefore it is necessary to develop a model to understand how the various parameters influence the multi-mode characteristics. In the time domain model, the output fields are given by the convolution of input fields and impulse response of the gain filter. The frequency-dependence gain is modeled using a second order Lorentzian digital filter and the phase shift term caused by changes in carrier density is multiplied to the amplitude gain. To find an effective refractive index and a confinement factor that depend on the structure of a laser diode in a section, we used the effective index method. Also the change of the effective refractive index in each section by the variation of carrier density is considered. We simulated 622 Mbps 1010100100-sequence pulse train of a multi-longitudinal laser diode.


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    Titel :

    Effects of frequency chirp in a directly modulated multi-longitudinal mode laser diode using time domain modeling with random noise fluctuations


    Beteiligte:
    Hyun-Jae Yoon, (Autor:in) / Min-Ho Choi, (Autor:in) / Nack-Jin Chung, (Autor:in) / In-Shik Park, (Autor:in) / Jichai Jeong, (Autor:in)


    Erscheinungsdatum :

    1999-01-01


    Format / Umfang :

    140154 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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