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Author: search.filters.author.Koosirivanichakorn, P.Subject: search.filters.subject.FDTD

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    The prediction of the maximum FSR and minimum HPBW for the silicon based ring and racetrack microresonators
    (2005-12-01)
    Somkuarnpanit, S.
    ;
    Koosirivanichakorn, P.
    ;
    Khuntaweetep, S.
    This paper determines the maximum free spectral range (FSR) and the minimum half power bandwidth (HPBW) of the ring and racetrack resonators based on silicon substrate using FDTD. At the optimum cross-section that provides the compromised efficiency, the relationships between HPB W against the coupling efficiency and FSR, against the racetrack round trip have been obtained. The relationships would be utilized to determine the possibly maximum FSR of 60nm and the minimum HPBW of 5nm, or highest quality factor for the ring microresonator with 1μm radius. © 2005 IEEE.
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    A design of silicon-based racetrack microcavity resonator using FDTD
    (2002-12-01)
    Somkuarnpanit, S.
    ;
    Puangkird, B.
    ;
    Koosirivanichakorn, P.
    This paper proposes a design of the racetrack microcavity resonator based on silicon substrate. The optimized dimensions of the structure were found by FDTD simulation. The characteristics were also found by the method, and further compared with another model of mode coupling theory. The optimized dimensions of straight guide at wavelength 1.55 μm are thickness and width of 0.4 μm. The curve guide provides the maximum at 1μm whereas the resonating section requires small coupling section of about 3 μm.