发明名称 |
Method for measuring the optical signal-to-noise ratios OSNR in a wavelength division multiplex (WDM) transmission system |
摘要 |
A method for measuring the optical signal-to-noise ratio in a Wavelength Division Multiplex (DWDM/WDM) transmission system is described in which the effect of the amplified spontaneous emission ASE differs through different components located in the transmission system such as various filters, for example. The measuring points of the signal and noise powers to measure the optical signal-to-noise ratio are selected in accordance with the spectral characteristics of these components by a network management system.
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申请公布号 |
US6847440(B2) |
申请公布日期 |
2005.01.25 |
申请号 |
US20030607350 |
申请日期 |
2003.06.26 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
EBERLEIN JOERG;MARTIN JUERGEN |
分类号 |
H04B10/077;H04B10/079;H04B10/08;H04J14/02;(IPC1-7):G01N21/00 |
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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