Summary form only given. Wavelength tunable vertical cavity surface emitting lasers (VCSELs) have many applications in compact instrumentation and WDM communications. 31.6 nm of continuous tuning has been demonstrated by a micromechanical tunable VCSEL with a movable cantilever. Because the VCSEL's top mirror is embedded into this movable cantilever, tilt is introduced to this top distributed Bragg reflector (DBR) as the lasing wavelength is tuned. A frequently asked question is the effect of this tilted DBR on the optical mode in such a VCSEL structure. In the paper, we address this question with a numerical approach and show that for devices with diameters of 5 /spl mu/m or less, tilt loss does not dominate modal optical loss in our tunable structure.


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    Titel :

    Tilt loss in wavelength tunable micromechanical vertical cavity lasers


    Beteiligte:
    Li, M.Y. (Autor:in) / Chang-Hasnain, C.J. (Autor:in)


    Erscheinungsdatum :

    01.01.1999


    Format / Umfang :

    307500 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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