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Browsing by Author "Lin, Chung-Ting"

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    MODULATION DEVICE FOR GENERATING OPTICAL SIGNAL WITH QUADRUPLE FREQUENCY AND METHOD THEREOF
    (2009-08-27)
    CHEN, Jye Hong
    ;
    Lin, Chung-Ting
    ;
    Shih, Po Tsung
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    Peng, Peng-Chun
    ;
    Dai, Sheng Peng
    The present invention discloses a modulation device for generating an optical signal with quadruple frequency and the modulation method thereof. The modulation device in the present invention utilizes a commercial integrated modulator, a RF signal generator and a phase shifter to generate an optical signal with quadruple frequency. When the RF signal generator generates a first modulation signal, and the phase shifter shifts the first modulation signal by 90 degrees to generate a second modulation signal, the integrated modulator is biased to transmit the optical signal in maximum value and to modulate the first and second modulation signal so as to generate a output optical signal with quadruple frequency.