Scholarlink

<p>Photonic Crystal Fibers (PCFs) exhibit unique guiding mechanisms and flexible structural designs, which have facilitated their extensive application across diverse fields. In this study, the unique hole structure of PCFs was utilized to fill with a thermosensitive liquid (i.e., toluene). The temperature-controlled transmission characteristics of PCF filled with toluene were experimentally investigated. The transmission spectrum of the toluene-filled PCF is a bandgap spectrum, within which there exist two obvious dips. This transmission dips arise from the resonant absorption of the high refractive index rods. As the temperature increases, the transmission dips will be blue-shifted along with the bandgap, with a temperature sensitivity of -14.63&#xa0;nm/℃, and the measurement range exceeds beyond 15 ℃. The toluene-filled PCF sensor has a simple structure, high-temperature sensitivity, and good linearity. This simple all-fiber structure temperature modulator can be applied for high-precision temperature measurement and tunable notch filters.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Highly sensitive temperature sensor based on photonic crystal fiber with all-filled toluene

  • 期刊论文

  • 发表日期：

    2025年3月5日

查看全文
  • Lan Cheng,
  • Qinyan Zhang,
  • Kai Jiang

摘要

Photonic Crystal Fibers (PCFs) exhibit unique guiding mechanisms and flexible structural designs, which have facilitated their extensive application across diverse fields. In this study, the unique hole structure of PCFs was utilized to fill with a thermosensitive liquid (i.e., toluene). The temperature-controlled transmission characteristics of PCF filled with toluene were experimentally investigated. The transmission spectrum of the toluene-filled PCF is a bandgap spectrum, within which there exist two obvious dips. This transmission dips arise from the resonant absorption of the high refractive index rods. As the temperature increases, the transmission dips will be blue-shifted along with the bandgap, with a temperature sensitivity of -14.63 nm/℃, and the measurement range exceeds beyond 15 ℃. The toluene-filled PCF sensor has a simple structure, high-temperature sensitivity, and good linearity. This simple all-fiber structure temperature modulator can be applied for high-precision temperature measurement and tunable notch filters.