发明名称 |
OPTICAL TRANSMITTER |
摘要 |
An optical transmitter includes a directly modulated semiconductor laser and a non-linear optical intensity modulator which is connected in series with the output of the laser. High frequency analogue modulating signals are applied both to the laser and to the modulator. The modulator has a transfer characteristic such that it cancels intermodulation distortion in the output from the laser, to give a source with an improved dynamic range. The transmitter is suitable for use in an analogue optical distribution system for cellular radio. |
申请公布号 |
EP0862819(B1) |
申请公布日期 |
2006.08.23 |
申请号 |
EP19960939172 |
申请日期 |
1996.11.19 |
申请人 |
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY |
发明人 |
WESTBROOK, LESLIE DAVID;MOODIE, DAVID GRAHAM |
分类号 |
G02F1/015;G02F1/017;H01S3/108;H01S5/00;H01S5/026;H01S5/40;H04B10/50;H04B10/54 |
主分类号 |
G02F1/015 |
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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