Optical communications – Transmitter – Having particular modulation
Reexamination Certificate
2008-11-06
2011-12-13
Nguyen, Dung (Department: 2828)
Optical communications
Transmitter
Having particular modulation
C398S183000, C398S198000, C372S025000, C372S030000
Reexamination Certificate
active
08078062
ABSTRACT:
The device is structured to have a first electric modulation signal generator, a second electric modulation signal generator, a two-mode beat light source and an optical intensity modulator. The first electric modulation signal generator generates and outputs a first electric modulation signal. The second electric modulation signal generator generates and outputs a second electric modulation signal of a same frequency as the first electric modulation signal and to which a phase difference of δ radians is provided (δ is a real number satisfying 0≦δ≦π). The two-mode beat light source is driven by the first electric modulation signal, and generates and outputs two-mode beat light. The two-mode beat light is inputted to the optical intensity modulator, and the optical intensity modulator generates and outputs a CS optical pulse train. Light transmittance of the optical intensity modulator is modulated by the second electric modulation signal.
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Nguyen Dung
Oki Electric Industry Co. Ltd.
SOLARIS Intellectual Property Group. PLLC
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