发明名称 |
METHOD AND DEVICE FOR IN-BAND OPTICAL PERFORMANCE MONITORING |
摘要 |
<p>A method and device for determining in-band noise of an optical signal. The optical signal is split to produce two optical signal components, of distinct polarisation, such that the respective noise component in each signal component is uncorrelated. The optical signal components are converted to the electrical domain to produce electrical signal components. The signal component powers are equalised either in the optical domain or the electrical domain. The equalised electrical signal components are then subtracted together to cancel the correlated portions of the signal components (e.g. the data signal), such that only uncorrelated signal components (e.g. noise) are output for measurement.</p> |
申请公布号 |
EP1878142(A1) |
申请公布日期 |
2008.01.16 |
申请号 |
EP20060721439 |
申请日期 |
2006.04.28 |
申请人 |
NATIONAL ICT AUSTRALIA LIMITED |
发明人 |
DODS, SARAH;ANDERSON, TREVOR |
分类号 |
H04B10/08 |
主分类号 |
H04B10/08 |
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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