KMITL

Permanent URI for this communityhttps://dspace.kmitl.ac.th/handle/123456789/1

Browse

Settings

Subject: search.filters.subject.Fast and slow lights

Search Results

Now showing 1 - 2 of 2
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Generalized fast and slow lights using multi-state microring resonators for optical wireless links
    (2010-10-01)
    Pornsuwancharoen, N.
    ;
    Sangwara, N.
    ;
    Yupapin, P. P.
    We propose an interesting result on fast and slow light generation using nonlinear microring resonators. When a soliton pulse is generated within the first ring resonator, the specific signals can be generated using the chaotic filter characteristics of light pulses travelling within the microring devices. We have demonstrated that two different frequency bands can be generated and they are suitable for use in optical wireless links. The other application of fast and slow lights is also presented, whereas signal security can be formed using the add/drop device to retrieve the original signal from the chaotic noisy signals. The key advantage is that the original signal can be kept in secret without any tapping due to the problem of fast light pulses and noisy signals, which are difficult to intercept. © 2009 Elsevier GmbH. All rights reserved.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Fast and slow light generation using chaotic signals in nonlinear microring resonators for communication security
    (2009-01-29)
    Pornsuwancharoen, Nithiroth
    ;
    Chalyasoonthorn, Sawatsakorn
    ;
    Yupapin, Preecha P.
    We propose a new system of signal security using nonlinear micro ring resonators for optical communication system. When a soliton pulse Is input into the system, the chaotic signal Is generated and multiplexed into the optical link. The chaotic waveform can be canceled using an add/drop device connected into the transmission link. Using the appropriate ring parameters, the original signal can be retrieved. An other application results from the fact that the fast and slow light behaviors can be presented, and can be seen using the add/drop multiplexers. In some cases, we can generate signal to obtain the two identical "signal" and "ghost" signals, which are observed in a different time frame. In this application, communication security can be performed when the required information is multiplexed and performs the link using the chaotic signal, fast and slow light, and signal and ghost signals, where the original signal can be retrieved by the known clients. © 2009 Society of Photo-Optical Instrumentation Engineers.