Strain-independent high-temperature sensor with a suspended-core fiber based Mach–Zehnder interferometer
| Autor: | Chenlin Du, Wen Zhou, Xue Chen, Quandong Huang, Shuangchen Ruan, Yongqin Yu, Yufeng Zhang |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
business.industry 010401 analytical chemistry Single-mode optical fiber Mach–Zehnder interferometer 01 natural sciences Temperature measurement Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials 010309 optics Core (optical fiber) Wavelength Interferometry Optics Control and Systems Engineering 0103 physical sciences Fiber Electrical and Electronic Engineering business Instrumentation Sensitivity (electronics) |
| Zdroj: | Optical Fiber Technology. 29:6-12 |
| ISSN: | 1068-5200 |
| Popis: | A simple Mach–Zehnder interferometer (MZI) was presented for high temperature measurement. The device was composed of a short segment of suspended-core fiber (SCF) sandwiched between two standard single mode fibers (SMFs) with a misaligned splicing joint. Lower temperature measurements were firstly carried out from room temperature to 190 °C, and the obtained sensitivity at the wavelength of 1465 nm was 25.82 pm/°C. However, a nonlinear response was further achieved for high-temperature sensing up to 1000 °C. Between 20 and 200 °C, the sensitivity was just 24.24 pm/°C at the wavelength of 1457 nm, whereas a higher sensitivity of 53.87 pm/°C was acquired in the range of 200–1000 °C. In addition, the strain cross-sensitivity was extremely low. As a result, the device can be developed as a strain-independent temperature sensor and become an excellent candidate for high temperature measurement. |
| Databáze: | OpenAIRE |
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