Photonics Research Centre, Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
Opt Lett. 2011 Feb 1;36(3):412-4. doi: 10.1364/OL.36.000412.
A fiber-optic Fabry-Perot interferometer was constructed by splicing a short length of photonic crystal fiber to a standard single-mode fiber. The photonic crystal fiber functions as a Fabry-Perot cavity and serves as a direct sensing probe without any additional components. Its pressure and temperature responses in the range of 0-40 MPa and 25°C-700°C were experimentally studied. The proposed sensor is easy to fabricate, potentially low-cost, and compact in size, which makes it very attractive for high-pressure and high-temperature sensing applications.
通过将一段短的光子晶体光纤拼接至标准单模光纤，构建了一个光纤法布里-珀罗干涉仪。光子晶体光纤作为法布里-珀罗腔，无需任何附加组件，可直接作为传感探头。实验研究了其在 0-40 MPa 和 25°C-700°C 范围内的压力和温度响应。该传感器易于制造，成本低，尺寸紧凑，非常适合高压和高温传感应用。
