Optical communications – Transmitter – Having particular modulation
Reexamination Certificate
2008-05-06
2011-11-15
Vanderpuye, Kenneth (Department: 2613)
Optical communications
Transmitter
Having particular modulation
C398S079000, C398S186000, C398S187000, C398S188000
Reexamination Certificate
active
08059968
ABSTRACT:
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.
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Chen Jye hong
Chi Sien
Dai Sheng Peng
Lin Chun-Ting
Peng Peng-Chun
National Chiao Tung University
Rosenberg , Klein & Lee
Vanderpuye Kenneth
Woldekidan Hibret
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