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Author: search.filters.author.Dunmeekaew, Ura

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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.
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    A proposal of all-wavelength optical amplifiers
    (2009-01-01)
    Pipatsart, Surasak
    ;
    Dunmeekaew, Ura
    ;
    Pornsuwancharoen, Nithiroth
    ;
    Yupapina, Preecha P.
    We have shown the interesting results of the optical signal amplifications using a Gaussian pulse propagating within a nonlinear microring resonator system. Several Gaussian pulses with different center wavelengths, for instance, 400-1,500 nm are investigated using the designed system. Results have shown that the optical signal amplification using the nonlinear ring resonator is plausible. By using the input power of 2 W, the optical output of 15 W is achieved. The interesting aspect is that all Gaussian input wavelengths can be amplified which can be useful for other wavelengths in future communication. © 2009 Elsevier B.V. All rights reserved.