发明名称 |
Protection architecture for photonic switch using tunable optical filter |
摘要 |
A method and a protection switching arrangement for protection switching of any one of a plurality of optical signals of a multi-wavelength optical signal from the failure of an optical component is provided. The multi-wavelength optical signal which contains the optical signals is itself rerouted by the use of wavelength agnostic rerouting elements, after which a tunable optical filter is used to obtain from the multi-wavelength optical signal the particular optical signal which would have been affected by the failure. In embodiments of the invention where the failed component is a switching fabric, the multi-wavelength optical signal is rerouted away from the failed switching fabric through a redundant switching fabric after which the particular optical signal is obtained with use of the tunable optical filter.
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申请公布号 |
US7389043(B2) |
申请公布日期 |
2008.06.17 |
申请号 |
US20030697312 |
申请日期 |
2003.10.31 |
申请人 |
NORTEL NETWORKS LIMITED |
发明人 |
BERNIER ERIC;GOODWILL DOMINIC;VUKOVIC MIRJANA |
分类号 |
H04J14/02;H04B10/02;H04B10/08 |
主分类号 |
H04J14/02 |
代理机构 |
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主权项 |
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地址 |
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