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    New wavelength division multiplexing bands generated by using a Gaussian pulse in a microring resonator system
    (2010-01-01)
    Dunmeekaew, U.
    ;
    Pornsuwancharoen, N.
    ;
    Yupapin, P. P.
    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 is discussed. 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 to 1400 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. Copyright © 2009 Wiley Periodicals, Inc.
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    Quantum key distribution using the localized soliton pulses via a wavelength router in the optical network
    (2010-01-01)
    Pornsuwancharoen, N.
    ;
    Dunmeekaew, U.
    ;
    Yupapin, P. P.
    We propose a new system of a continuous variable quantum key distribution via a wavelength router in the optical networks. A large bandwidth signal is generated by a soliton pulse propagating within the micro ring resonator, which is allowed to form the continuous wavelength with large tunable channel capacity. There are two forms of localized soliton pulses proposed. Firstly, the required information is transmitted via the localized temporal soliton pulse. Secondly, the continuous variable quantum key distribution is formed by using the localized spatial soliton pulse via a quantum router and networks, which is formed by using and optical add/drop multiplexer incorporating in the network. The localized soliton pulses are available for add/drop signals to/from the optical network, where the high security and capacity information can be performed. © 2009 Elsevier GmbH. All rights reserved.
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    Novel dynamic optical tweezers array generation using dark soliton control within an add/drop multiplexer
    (2010-01-01)
    Pornsuwancharoen, N.
    ;
    Tanaponjarus, C.
    ;
    Dunmeekaew, U.
    ;
    Yupapin, P. P.
    We proposes a novel system of the optical tweezers array generation using dark soliton control within and add/drop filter. The dynamic tweezers are generated within an add/drop filter, where the number of tweezers within the add/drop filter can be tuned and amplified. The smallest tuned tweezers width is 0.02nm is achieved, where the number of tweezers is 10 in an array. We have also theoretically shown that the dynamic tweezers can be controlled and tuned by varies the couple coefficient (k) between 0.1-0.9 and the radius of ring resonator between 10-20 μm, which is available for trapping and transportation in the communication up-link system via a add/drop filter. In application, the transmission of tweezers with different molecules and wavelengths can be performed within the transmission link, which is available for high density molecular transportation.
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    Multi-soliton generation using a micro ring resonator system for dwdm based soliton communication
    (2009-05-01)
    Pornsuwancharoen, N.
    ;
    Dunmeekaew, U.
    ;
    Yupapin, P. P.
    We propose a new optical system that can be used to form the multi soliton pulses within the micro ring resonators. The system consists of two micro ring resonators and an add/drop multiplexer that can be integrated into a single system. The large bandwidth signal is generated by using a soliton pulse propagating in a Kerr type nonlinear medium. The tuned soliton pulses in either spatial or temporal modes are obtained by using the add/drop multiplexer. Results obtained have shown that the multi soliton pulses can be localized coherently within the micro ring waveguide. This is shown that the generation of the multi soliton pulses within the micro ring resonator is achieved, which is available for long distance communication with dense wavelength division multiplexing (DWDM). A significant increase in channel number and spacing is obtained, and the large free spectrum range (FSR) of 600 pm is achieved. © 2009 Wiley Periodicals, Inc.