发明名称 |
Method and system for obtaining variable optical attenuation with very low polarization dependent loss over an ultra wide dynamic range |
摘要 |
A method and system of operating a variable optical attenuator to provide a required total attenuation in a planar lightwave circuit. The method comprises providing a first Mach-Zehnder interferometer having a first and a second arm carrying signals in an arbitrary polarization state, providing a second Mach-Zehnder interferometer having a third and a fourth arm carrying signals in an arbitrary polarization state, the second Mach-Zehnder interferometer concatenated in tandem with the first Mach-Zehnder interferometer, and cooperatively operating the concatenated first and second Mach-Zehnder interferometers to obtain the required total attenuation and an effectively nil polarization dependent loss.
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申请公布号 |
US6856751(B2) |
申请公布日期 |
2005.02.15 |
申请号 |
US20020159044 |
申请日期 |
2002.06.03 |
申请人 |
LYNX PHOTONIC NETWORKS, INC. |
发明人 |
OAKNIN DAVID;BRAND ERAN;CASPI SHAY;IZHAKI NAHUM |
分类号 |
G02B6/34;(IPC1-7):G02B6/00;G01C19/72 |
主分类号 |
G02B6/34 |
代理机构 |
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主权项 |
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