发明授权
- 专利标题： Variable line-rate optical transmitter by modulation format hopping using electrical-optical-electrical EOE generated QAM Signal
- 专利标题（中）： 可变线速光发射机采用调制格式跳频使用电光EOE生成QAM信号
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申请号： US13517683申请日： 2012-06-14
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公开(公告)号： US09450676B2公开(公告)日： 2016-09-20
- 发明人: Yue-Kai Huang , Ezra Ip , Philip Nan Ji
- 申请人： Yue-Kai Huang , Ezra Ip , Philip Nan Ji
- 申请人地址： JP
- 专利权人： NEC Corporation
- 当前专利权人： NEC Corporation
- 当前专利权人地址： JP
- 代理商 Joseph Kolodka
- 主分类号： H04B10/50
- IPC分类号： H04B10/50 ; H04B10/54
摘要：
The present method is for generating a 4-level optical signal and it includes providing a continuous wave CW optical source; modulating the CW optical source with a first intensity modulator driven by a binary electrical signal a n Gbits/s to generate an optical signal; employing a second intensity modulator as a pulse carving modulator that is driven by an RF signal at n GHz thereby generating a 4 level optical signal for subsequent detection by a receiver.
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