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Author: search.filters.author.Yupapin, Preecha P.Subject: search.filters.subject.DWDM

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    Novel CCTV security camera system using DWDM wavelength enhancement
    (2010-08-02)
    Srimuk, Polthep
    ;
    Mitatha, Somsak
    ;
    Yupapin, Preecha P.
    We propose a new design of a security camera system that uses the dense wavelength division multiplexing wavelength enhancement, whereas increasing in channel capacity and security can be provided. The increasing in number of channel can be obtained by the increasing in wavelength density, while the security is introduced by the specific wavelength filter, which is operated by the central operator. The optical communication wavelength enhancement is reviewed. The advantage is that the proposed system can be implemented and used incorporating with the existed communication link in either wire/wireless system, where the human privacy can be provided, which is discussed in details.
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    New wavelength division multiplexing bands generated by using a Gaussian pulse in a microring resonator system
    (2009-01-01)
    Dunmeekaew, Ura
    ;
    Tasakorn, Metha
    ;
    Pornsuwancharoen, Nithiroth
    ;
    Yupapin, Preecha P.
    We propose a novel system that can be used to generate the new optical communication bandwidths (wavelength bands) using a Gaussian pulse propagating within a nonlinear microring resonator system. By using the wide range of the Gaussian input pulses, for instance, when the input pulses of the common lasers with center wavelengths from 400-1,400 nm are used. Results obtained have shown that more available wavelength bands from the different center wavelengths can be generated, which can be used to form new dense wavelength division multiplexing bands, whereas the use of the very high channel capacity for personal wavelength and network applications is plausible. © 2009 Elsevier B.V. All rights reserved.