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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    Title :

    Tilt loss in wavelength tunable micromechanical vertical cavity lasers


    Contributors:


    Publication date :

    1999-01-01


    Size :

    307500 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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