Simulation Analysis of Temperature Sensing Characteristics of Photonic Crystal Fiber with Gold Plated Surface

YANG Songyan; HE Wei; ZHANG Yumin; LIU Yantao; MA Siqi; YANG Jingze

doi:10.13756/j.gtxyj.2024.230008

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Simulation Analysis of Temperature Sensing Characteristics of Photonic Crystal Fiber with Gold Plated Surface

更新时间：2024-08-05

- Simulation Analysis of Temperature Sensing Characteristics of Photonic Crystal Fiber with Gold Plated Surface
- Study on Optical Communications Issue 4, Pages: 23000801-23000806(2024)
- 作者机构：
  
  1.北京信息科技大学　光电信息与仪器北京市工程研究中心，北京　100192
  2.北京强度环境研究所，北京　100076
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2024.230008
  CLC： TN256
- Published：10 August 2024，
  
  Received：12 February 2023，
  
  Revised：08 March 2023，
- 稿件说明：
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杨松岩，何巍，张钰民，等. 镀金表面光子晶体光纤温度传感特性仿真分析[J]. 光通信研究，2024(4)：230008.

Yang S Y, He W, Zhang Y M, et al. Simulation Analysis of Temperature Sensing Characteristics of Photonic Crystal Fiber with Gold Plated Surface [J]. Study on Optical Communications, 2024(4)：230008.
杨松岩，何巍，张钰民，等. 镀金表面光子晶体光纤温度传感特性仿真分析[J]. 光通信研究，2024(4)：230008. DOI： 10.13756/j.gtxyj.2024.230008.

Yang S Y, He W, Zhang Y M, et al. Simulation Analysis of Temperature Sensing Characteristics of Photonic Crystal Fiber with Gold Plated Surface [J]. Study on Optical Communications, 2024(4)：230008. DOI： 10.13756/j.gtxyj.2024.230008.

摘要

【目的】

针对表面等离子体共振（SPR）光子晶体光纤（PCF）温度传感器制作难度较大的问题，文章提出了一种D型结构PCF温度传感器，对其空气孔微结构及排布进行了设计，并采用在光纤抛光表面涂覆金层的方法来激发光纤SPR。

【方法】

采用乙醇作为温敏材料，将温敏效应作为温度传感机制，达到温度传感的效果。采用有限元分析方法分别对金层厚度和光纤椭圆空气孔尺寸进行仿真，分析不同条件下纤芯模式与表面等离子模式之间的耦合特性，优化传感器结构。

【结果】

对传感器温度特性进行仿真，在－80~80 ℃范围内，传感器温度灵敏度为3.4 nm/℃，线性度优于0.969 63。

【结论】

文章所设计的温度传感器具有较宽的温度检测范围和良好的灵敏度与线性度，可应用于工业、农业和医学等领域的温度实时监测。

Abstract

【Objective】

In order to solve the problem that it is difficult to make the temperature sensor of the Photonic Crystal Fiber (PCF) with Surface Plasma Resonance (SPR)

a D-structure PCF temperature sensor is proposed. The micro-structure and arrangement of the air hole are also designed. The method of coating the polishing surface of the optical fiber with gold layer is used to stimulate the SPR of the optical fiber.

【Methods】

Ethanol is used as a temperature-sensitive material

and the temperature-sensitive effect is used as the temperature sensing mechanism to achieve the effect of temperature sensing. The finite element analysis method is used to simulate the thickness of the gold layer and the size of the elliptical air hole of the fiber respectively. The coupling characteristics between the core mode and the surface plasma mode are analyzed under different conditions

and the structure of the sensor is optimized.

【Results】

The temperature characteristics of the sensor are simulated. In the range of -80~80 ℃

the sensitivity of the sensor is 3.4 nm /℃

and the linearity is better than 0.969 63.

【Conclusion】

The temperature sensor designed in this paper has a wide temperature detection range

satisfactory sensitivity

and linearity

which can be used for real-time temperature monitoring in industrial

agricultural

and medical fields.

关键词

温度传感器光子晶体光纤表面等离子体共振有限元法

Keywords

temperature sensorPCFSPRfinite element method

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Yu Y, Li X, Hong X, et al. Some Features of The Photonic Crystal Fiber Temperature Sensor with Liquid Ethanol Filling [J]. Optics Express, 2010, 18(15):15383-15388.

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