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Multi-order, tunable Fabry-Perot etalon filter with wavelength down-selector
Multi-order, tunable Fabry-Perot etalon filter with wavelength down-selector
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机译:多阶,可调谐法布里 - 珀罗特标准杆子滤波器,具有波长下旋光选择器
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摘要
In accordance with various embodiments of the disclosed subject matter, a system, device and method for an electrically tunable wavelength selection filter comprising a wavelength selection filter portion having a plurality of alternating thin films of two dielectric materials with a thin film capacitor displacing one pair of alternating thin films, and an order sorting filter portion electrically isolated from but proximate the wavelength selection filter and having a plurality of alternating thin films of two dielectric materials where one of the dielectric materials exhibits a voltage-dependent refractive index. Independently controlling the capacitor charging voltage and the voltage across the order sorting filter enables selective transmission of narrow spectral lines across a desired frequency region.
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