Optical communications – Transmitter – Having particular modulation
Reexamination Certificate
2007-04-17
2007-04-17
Li, Shi K. (Department: 2613)
Optical communications
Transmitter
Having particular modulation
C398S188000
Reexamination Certificate
active
10453005
ABSTRACT:
Disclosed is a duobinary optical transmission apparatus. The duobinary optical transmission apparatusenhances nonlinear and dispersion characteristics for an intermediate-long distance transmission at a high-speed transfer rate without the use an electric LPF. The duobinary optical transmission apparatus includes a light source for generating a carrier wave, a duobinary optical signal generator for receiving a Non Return to Zero (NRZ) signal and generating a modulated optical signal generated by modulating the carrier wave according to the NRZ signal, and a Return to Zero (RZ) signal generator for converting the NRZ signal into a RZ (Return to Zero) signal. Therefore, optical intensity and a phase are modulated using only a single interferometer-type optical modulator.
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Hwang Seong-Taek
Kang Byung-Chang
Lee Gyu-Woong
Lee Han-Lim
Cha & Reiter L.L.C.
Li Shi K.
Samsung Electronics Co,. Ltd.
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