基于圆柱形布拉格波导的温度传感器

R. Chourasia, Vivek Singh
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引用次数: 3

摘要

提出了一种基于包层缺陷层的圆柱形布拉格波导温度传感器,并对其进行了理论研究。该波导由碳化硅芯和硅包层(含缺陷层)组成。采用传递矩阵法计算了波导的透过率。观察到SiC的热膨胀系数和折射率随温度呈线性变化。该传感器的灵敏度约为51.48pm/摄氏度,远高于已有的基于光纤布拉格光栅的类似传感器的9pm/摄氏度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Cylindrical Bragg waveguide based temperature sensors
Cylindrical Bragg waveguide based temperature sensor having a defect layer in cladding region is proposed and studied theoretically. The waveguide consists of SiC core surrounded by alternate Si and SiO2 cladding layers with a defect layer. The transmittance of waveguide is obtained using transfer matrix method. It is observed that thermal expansion coefficient and refractive index of SiC varies linearly with temperature. The obtained sensitivity in our proposed sensor is approximately 51.48pm/Celsius, which is much larger than the reported 9pm/Celsius similar fiber Bragg grating based sensors.
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