A Chalcogenide Multimode Interferometric Temperature Sensor Operating at a Wavelength of 2 mu m

作者：She, Lin; Wang, Pengfei^*; Sun, Weimin; Wang, Xianfan; Yang, Wenlei; Brambilla, Gilberto; Farrell, Gerald

来源：IEEE Sensors Journal, 2017, 17(6): 1721-1726.

DOI：10.1109/JSEN.2017.2651382

• Chalcogenide fiber
• multimode interference
• temperature sensor

This paper investigated the fabrication of a singlemode-multimode-singlemode fiber structure based on a chalcogenide (As2S3 and AsxS1-x) multimode fiber sandwiched between two standard silica singlemode fibers using a commercial fiber fusion splicer. The temperature dependence of this hybrid fiber structure was investigated and a first proof of concept showed that the hybrid SMS fiber structure has an average experimental temperature sensitivity of circa 84.38 pm/degrees C over a temperature range of 20 degrees C similar to 100 degrees C at the wavelength range around 2 mu m. The measured results show a general agreement with numerical simulations based on a guided-mode propagation analysis method. Our result provides a potential platform for the development of compact, high-optical-quality, and robust sensing devices operating at the midinfrared wavelength range.

• 出版日期2017-3-15
• 单位哈尔滨工程大学