基于光束汇聚的光纤法珀传感器及其制作方法

By employing a stacked structure of film layers, intermediate layers, and bottom layers in the fiber optic Fabry-Perot sensor, combined with micro-nano antireflection and collimation structures, the problems of high sensor fabrication complexity and low signal-to-noise ratio were solved, achieving efficient optical signal coupling and stable detection.

CN122258961BActive Publication Date: 2026-07-17ZHONGBEI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHONGBEI UNIV
Filing Date
2026-05-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing fiber optic Fabry-Perot sensors suffer from problems such as low signal-to-noise ratio, low spectral contrast, complex fabrication process, and high cost during manufacturing.

Method used

By employing a stacked structure of film layers, intermediate layers, and bottom layers, grooves are formed on the film layers and bottom layers, and micro-nano antireflection structures and micro-nano collimation structures are formed on the surface of the intermediate layer, forming a beam converging system, simplifying the fabrication process and improving the optical signal coupling efficiency.

Benefits of technology

It significantly improves the optical signal coupling efficiency and detection performance of the sensor, reduces the manufacturing complexity and cost, and enhances the stability and applicability of the sensor, making it suitable for fields such as aerospace, energy, and industrial monitoring.

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Abstract

本发明提供一种基于光束汇聚的光纤法珀传感器及其制作方法,涉及半导体技术领域。其中,传感器包括:层叠设置的膜片层、中间层以及底层;膜片层开设有第一凹槽,中间层以对应其的第一层表面朝向第一凹槽的方式与膜片层进行贴合、以基于第一凹槽形成法珀腔,底层开设有第二凹槽,中间层以对应其的第二层表面朝向第二凹槽的方式与底层进行贴合、以基于第二凹槽形成纳米容纳腔,中间层的第二层表面形成有位于纳米容纳腔的包括阵列分布的各增透单元的微纳增透结构,底层形成有位于纳米容纳腔、且与微纳增透结构呈现对称位置关系的包括阵列分布的各准直单元的微纳准直结构。本发明至少降低了制作复杂度。
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Citation Information

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