发明名称 |
Method and apparatus for implementing a multi-channel tunable filter |
摘要 |
The present invention provides a multi-channel tunable filter and methods for making such a filter. In one embodiment, the filter comprises a bank of gratings or a continuously varying filter frequency imprinted into a filter material, such as Lithium Niobate or glass or polymer. An optical read-head comprising a pair of lenses is configured to pass light from within an optical fiber carrying multiple wavelengths through an appropriate grating to extract or drop a specific wavelength. To ensure continuous data transmission, the filter is tuned to a wavelength by configuring the read-head to move in a hitless manner. In one embodiment, the gratings are recorded by the interference of two beams. A first plane wave reflects off a first mirror stack and a second plane wave reflects off a second mirror stack. In another embodiment, the gratings are recorded by a phase masking method.
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申请公布号 |
US2006156241(A1) |
申请公布日期 |
2006.07.13 |
申请号 |
US20060371506 |
申请日期 |
2006.03.08 |
申请人 |
PSALTIS DEMETRI;MOSER CHRISTOPHE;STECKMAN GREG;BUSE KARSTEN;NEE INGO;HUKRIEDE JOERG |
发明人 |
PSALTIS DEMETRI;MOSER CHRISTOPHE;STECKMAN GREG;BUSE KARSTEN;NEE INGO;HUKRIEDE JOERG |
分类号 |
G06F17/00;G06F3/00;G06F9/00 |
主分类号 |
G06F17/00 |
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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