发明名称 |
AN OPTICAL PASS-BAND FILTERING METHOD AND DEVICE AND A DEVICE FOR INSERTING/EXTRACTING A FREQUENCY MULTIPLEXED OPTICAL SUB-BAND INTO/FROM AN OPTICAL SIGNAL |
摘要 |
An optical pass-band filtering device comprises a duplicator able to provide duplicates of an optical signal to at least a first and a second output port; a first optical filtering unit connected to the first output port of the duplicator, said unit having a transfer function that decreases between a first pass wavelength and a first cut-off wavelength; a second optical filtering unit, connected to the second output port of the duplicator, said unit having a transfer function that increases between a second cut-off pass wavelength, the second cut-off wavelength being higher than the first; and coupler connected to the first and second optical filtering units that combine the optical signals filtered by said optical filtering units to obtain a filtered optical signal in which the optical band located between the first and second cut-off wavelengths is removed. A related device node using is also provided. |
申请公布号 |
EP2673668(A1) |
申请公布日期 |
2013.12.18 |
申请号 |
EP20120707876 |
申请日期 |
2012.02.07 |
申请人 |
ORANGE |
发明人 |
BLOUZA, SOFIENE;KARAKI, JULIE;PINCEMIN, ERWAN |
分类号 |
G02B6/293;H04J14/02 |
主分类号 |
G02B6/293 |
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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