Purpose

The purpose of this study aims to simulate the long-period fiber grating sensor pulse peak position against the transmission range. The long-period fiber grating sensor pulse peak position against the transmission range is simulated clearly where the pulse peak value at zero position is 0.972655 with the ripple factor of unity. It is demonstrated that the long-period fiber grating sensor bandwidth can be estimated to be 50 µm. Wavelength shift of the long-period grating sensor (LPGS) is reported against grating wavelength, applied temperatures and applied micro strain.

Design/methodology/approach

This work has reported the numerical simulation of LPGS transmission spectrum behavior characteristics under the strain and temperature effects by using OptiGrating simulation software. The sensor fabrication material is silica-doped germanium. The transmittivity/reflectivity and input spectrum pulse intensity of long-period Bragg sensor variations are simulated against the grating wavelength variations. Input/output pulse intensity of LPGS variations is simulated against the timespan variations with the Gaussian input pulse from 100 to 500 km link length.

Findings

Temperature variation and strain variation of the LPGS are outlined against both applied temperatures and micro-strain variations at the central grating wavelength of 1,550 nm.

Originality/value

It is demonstrated that the long period fiber grating sensor bandwidth can be estimated to be 50 µm. Wavelength shift of the long period grating sensor is reported against both grating wavelength, applied temperatures and applied micro strain. Temperature variation and strain variation of the long period grating sensor are outlined against both applied temperatures and micro strain variations at the central grating wavelength of 1550 nm.

中文翻译：

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应变和温度作用下长周期光栅传感器（LPGS）透射光谱行为的数值模拟

目的

这项研究的目的是针对传输范围模拟长周期光纤光栅传感器脉冲峰值位置。清晰地模拟了长周期光纤光栅传感器脉冲峰值位置相对于传输范围的情况，其中零位置处的脉冲峰值为0.972655，纹波因子为1。结果表明，长周期光纤光栅传感器的带宽可以估计为50 µm。报告了长周期光栅传感器（LPGS）的波长偏移与光栅波长，所施加的温度和所施加的微应变的关系。

设计/方法/方法

这项工作已经报告了通过使用OptiGrating仿真软件对LPGS传输光谱行为特性在应变和温度影响下的数值模拟。传感器制造材料是掺杂二氧化硅的锗。针对光栅波长变化，模拟了长时间布拉格传感器变化的透射率/反射率和输入光谱脉冲强度。LPGS变化的输入/输出脉冲强度针对高斯输入脉冲从100至500 km链路长度的时间跨度变化进行仿真。

发现

概述了LPGS的温度变化和应变变化，以及在中心光栅波长为1,550 nm时施加的温度和微应变变化。

创意/价值

结果表明，长周期光纤光栅传感器的带宽可以估计为50 µm。报告了长周期光栅传感器的波长偏移与光栅波长，所施加的温度和所施加的微应变的关系。针对在1550 nm中心光栅波长处施加的温度和微应变变化，概述了长周期光栅传感器的温度变化和应变变化。