发明名称 |
Optical transmission method, optical transmitter, optical receiver, and optical transmission system |
摘要 |
A system which improves wavelength tolerance, compensates dispersion in a simple way, reduces limitation of the fiber input power is disclosed. The operation includes receiving a clock signal from a system clock source; modulating a single mode optical signal based on the clock signal and generating an optical pulse signal having two longitudinal modes, the frequency interval thereof being nxB, n being a natural number and B being a transmission speed; generating a partial response signal by converting a binary NRZ signal from a digital signal source in synchronism with the system clock source; and modulating the optical pulse signal based on the partial response signal, and outputting a binary RZ modulated signal. The binary RZ modulated signal is input into a receiver, where two partial response components in the optical spectra of the input signal are divided, and one or both of the components are received.
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申请公布号 |
US6865348(B2) |
申请公布日期 |
2005.03.08 |
申请号 |
US20010793954 |
申请日期 |
2001.02.28 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
MIYAMOTO YUTAKA;HIRANO AKIRA;YONENAGA KAZUSHIGE;SATO KENJI;TOBA HIROMU;MATSUURA AKIHIKO |
分类号 |
H04B10/155;H04B10/50;H04B10/508;(IPC1-7):H04B10/04;H04B10/12 |
主分类号 |
H04B10/155 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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