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TRIPLE ELECTRODE MOEMS TUNABLE FILTER AND FABRICATION PROCESS THEREFOR

机译:三电极可调谐滤光片及其制造工艺

摘要

A MOEMS Fabry-Perot tunable filter 100 includes an optical membrane structure 150. Two electrostatic cavities 136, 138 are provided, one on either side of the membrane structure 150. As a result, electrostatic attractive forces can be exerted on the optical membrane to enable deflection in either direction, typically, along the optical axis 10. This is useful in calibrating the tunable filter during operation to a lambd° set point. It is also useful in controlling the membrane to avoid unstable operation and increasing a deflection range.
机译:MOEMS Fabry-Perot可调滤光器100包括光学膜结构150。提供了两个静电腔136、138,在膜结构150的任一侧都有一个静电腔。结果,可以将静电吸引力施加在光学膜上,以实现通常在沿光轴10的任一方向上偏转。这对于在操作期间将可调滤波器校准到Lambd°设定点很有用。在控制膜片以避免不稳定操作和增加偏转范围方面也很有用。

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