发明名称 |
System and method for quantification of optical signal-to-noise ratio using low frequency electrical signal analysis |
摘要 |
<p>A system for quantification of an OSNR of an optical signal transmitted in an optical communications network includes a signal converter for converting a sample of the optical signal to an electrical signal. The electrical signal is filtered within a predetermined range of frequencies to generate a filtered signal. An energy detector detects the energy level of the filtered signal. An energy detector detects the energy level of the electrical signal. A comparator compares the energy levels of the electrical signal to the energy level of the filtered signal to generate an output representative of the OSNR. <IMAGE></p> |
申请公布号 |
EP1376899(A1) |
申请公布日期 |
2004.01.02 |
申请号 |
EP20030013617 |
申请日期 |
2003.06.16 |
申请人 |
ALCATEL |
发明人 |
BUTLER, DAVID J.;BURFORD, ROBERT |
分类号 |
H04B10/077;H04B10/079;(IPC1-7):H04B10/08 |
主分类号 |
H04B10/077 |
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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