发明名称 |
DIGITAL SIGNAL PROCESSOR-BASED OPTICAL TRANSMITTER |
摘要 |
In a digital signal processing optical transmission apparatus such as a predistortion or OFDM type one, optical transmission at a stable S/N ratio is intended to be able to be made by controlling an output of an optical transmission signal with fixed average power, even if a peak to average power ratio of the optical transmission signal changes. The apparatus is provided with an average power calculation unit (30) that calculates the average power of a digital signal outputted from a digital signal processing circuit (2), and an optical power variable unit (31) that serves to make constant the average power of an optical transmission signal outputted from an optical vector modulator (5). |
申请公布号 |
EP2259128(A1) |
申请公布日期 |
2010.12.08 |
申请号 |
EP20080739477 |
申请日期 |
2008.03.31 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
MIZUOCHI, TAKASHI;KONISHI, YOSHIAKI;KOBAYASHI, TATSUYA |
分类号 |
H04B10/548;H04B10/50;H04B10/516;H04B10/564 |
主分类号 |
H04B10/548 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|