发明名称 |
Secure optical communication |
摘要 |
A secure optical communication scheme uses differential delay D in an unbalanced Mach-Zehender interferometer to provide two copies of the optical source signal at a remote phase modulator separated in time by D. As D is much bigger than the coherence time source, the two copies of the signal are effectively uncorrelated. Both signals are phase-modulated by the remote sender's data and returned to the unbalanced interferometer. The phase modulator will be converted into amplitude modulation by the action of the interferometer.
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申请公布号 |
US7796896(B2) |
申请公布日期 |
2010.09.14 |
申请号 |
US20040573266 |
申请日期 |
2004.09.29 |
申请人 |
BRITISH TELECOMMUNICATIONS PLC |
发明人 |
SIKORA EDMUND S R;HEALEY PETER |
分类号 |
H04B10/00;H04B10/155;H04B10/2587;H04B10/26;H04B10/50;H04K1/00 |
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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