发明名称 |
Optical transmitter and optical transmission system |
摘要 |
An optical SSB-SC modulation section 13 subjects an optical signal fa outputted from an optical source 11 to an optical SSB-SC modulation based on the amplitude of an external electric signal fc to thereby output an optical intensity-modulated signal. An optical phase modulation section 14 subjects the optical signal fa to an optical phase modulation based on the amplitude levels of the first to n<SUP>th </SUP>external electric signals having frequencies f 1 to fn to thereby output the resultant signal as an optical phase-modulated signal. An optical combining section 15 combines together the optical intensity-modulated signal and the optical phase-modulated signal. An optical detecting section 16 performs an optical homodyne detection through a squared detection of the optical intensity-modulated signal and the optical phase-modulated signal combined together to thereby produce a wideband modulated signal, being the difference beat signal between the two optical signals. A combining section 17 combines together the wideband modulated signal and the o<SUP>th </SUP>to t<SUP>th </SUP>electric signals having frequencies fo to ft to thereby output the resultant signal as a wideband modulated signal.
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申请公布号 |
US2008031630(A1) |
申请公布日期 |
2008.02.07 |
申请号 |
US20070878261 |
申请日期 |
2007.07.23 |
申请人 |
OHIRA TOMOAKI;MASUDA KOUICHI;FUSE MASARU |
发明人 |
OHIRA TOMOAKI;MASUDA KOUICHI;FUSE MASARU |
分类号 |
H04B10/00;H04B10/04;H04B10/08 |
主分类号 |
H04B10/00 |
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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