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D-type microstructure optical fiber temperature sensor based on surface plasma enhancement mechanism

A technology of surface plasmon and micro-structured optical fiber, which is applied in the field of sensors, can solve the problems of insufficient system stability, temperature cross-sensitivity of optical fiber temperature sensor, large coupling loss, etc., and achieve high stability, high temperature sensitivity, wide range, and high loss peak value Effect

Active Publication Date: 2020-11-24
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

With the continuous development of science and technology, the demand for people's living standards is also increasing. The traditional optical fiber temperature sensor is gradually unable to meet people's needs due to the shortcomings of temperature cross-sensitivity, large coupling loss, and insufficient system stability.

Method used

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  • D-type microstructure optical fiber temperature sensor based on surface plasma enhancement mechanism
  • D-type microstructure optical fiber temperature sensor based on surface plasma enhancement mechanism
  • D-type microstructure optical fiber temperature sensor based on surface plasma enhancement mechanism

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the examples, but those skilled in the art should understand that the present invention is not limited to the following examples, and any improvements and equivalent changes made on the basis of the specific examples of the present invention are within the scope of the present invention within the scope of the claims.

[0027] Embodiment Based on the surface plasmon enhancement mechanism D-type microstructure fiber optic temperature sensor

[0028] A D-type microstructure optical fiber temperature sensor based on surface plasmon enhancement mechanism, such as figure 1 As shown, it includes a background material 8, the background material 8 is surrounded by a circular arc surface and a polished plane to form a D shape, the surface of the polished plane is coated with a metal film 7, and the background material 8 is wrapped with air holes and a fiber core 6, the fiber core 6 is located at the cente...

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Abstract

The invention belongs to the technical field of sensors. The invention discloses a D-type microstructure optical fiber temperature sensor based on a surface plasma enhancement mechanism. The sensor comprises a background material, the background material is in a D shape defined by an arc curved surface and a plane, the plane surface is coated with a metal film, air holes and a fiber core are wrapped in the background material, the fiber core is located at the circle center of the arc curved surface, the air holes are regularly formed around the fiber core, and the fiber core is filled with liquid to form a liquid fiber core transmission channel. The D-type microstructure optical fiber temperature sensor based on the surface plasma enhancement mechanism provided by the invention has high linearity and high stability, and realizes high-sensitivity and wide-range measurement of temperature. The sensor provided by the invention is suitable for measuring temperature.

Description

technical field [0001] The invention belongs to the technical field of sensors, and relates to an optical fiber, in particular to a D-type microstructure optical fiber temperature sensor based on a surface plasmon enhancement mechanism. Background technique [0002] Since the advent of low-loss optical fibers in the 1980s, optical fiber sensing technology has been at the forefront of sensor technology development, and has become two important fields of optical fiber technology together with optical fiber communication technology. With the continuous development of science and technology, the demand for people's living standards is also increasing. Traditional optical fiber temperature sensors are gradually unable to meet people's needs due to shortcomings such as temperature cross-sensitivity, large coupling loss, and insufficient system stability. In 1992, P.St.J.Russe11 of the University of Bath in the United Kingdom first proposed the concept of photonic crystal fiber. T...

Claims

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Application Information

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IPC IPC(8): G02B6/02G02B6/032G01K11/32
CPCG02B6/02342G02B6/032G01K11/32G02B2006/0325
Inventor 范振凯侯光宇秦建业张晶晶曹雪
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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