发明名称 |
Tunable optical filter |
摘要 |
A tunable optical filter for use in wavelength division multiplexing systems. The optical filter contains a plurality of tunable reflection gratings which block all of the channels in the incoming lightwave. An electrode or a heating element is provided for each reflection grating to tune the reflection gratings so that their reflection bands do not coincide with a desired channel or channels thereby allowing the desired channel or channels to pass through the filter.
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申请公布号 |
US5459799(A) |
申请公布日期 |
1995.10.17 |
申请号 |
US19940288878 |
申请日期 |
1994.08.12 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON |
发明人 |
WEBER, JEAN-PIERRE |
分类号 |
G02B6/12;G02F1/01;G02F1/025;G02F1/035;H01S5/12;H01S5/50;(IPC1-7):G02B6/10 |
主分类号 |
G02B6/12 |
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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