发明名称 |
Add/drop-drop and continue-module and drop and continue module |
摘要 |
A tunable add/drop&continue or drop&continue module comprises two optical filters where at least one is tunable and that are arranged following one another between a branching unit for optical signals and an insertion unit follow a branching unit for optical signals. The reflection attenuation of the one tunable optical filter is lower and the transmission attenuation higher than that of the other optical filter, as a result of which the drop&continue function of the module can be realized without high circuit-oriented expense.
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申请公布号 |
US7266299(B1) |
申请公布日期 |
2007.09.04 |
申请号 |
US20000644881 |
申请日期 |
2000.08.23 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
BOCK HARALD;LEISCHING PATRICK;RICHTER ALEXANDER;STOLL DETLEF |
分类号 |
H04J14/02;G02B6/34;H04Q11/00 |
主分类号 |
H04J14/02 |
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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