High temperature high sensitivity Mach-Zehnder interferometer based on waist-enlarged fiber bitapers
| Autor: | Zhongkai Zhang, Peng Shi, Wu Zirong, Na Zhao, Qijing Lin, Kun Yao, Weixuan Jing, Zhuangde Jiang, Bian Tian |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
business.industry Metals and Alloys Linearity 02 engineering and technology Condensed Matter Physics Mach–Zehnder interferometer Interference (wave propagation) 01 natural sciences Temperature measurement Graded-index fiber Surfaces Coatings and Films Electronic Optical and Magnetic Materials 010309 optics Interferometry 020210 optoelectronics & photonics Optics 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Fiber Electrical and Electronic Engineering business Instrumentation Sensitivity (electronics) |
| Zdroj: | Sensors and Actuators A: Physical. 267:491-495 |
| ISSN: | 0924-4247 |
| Popis: | An optical Mach-Zehnder interferometer (MZI) composed of a short section of thin-core fiber (TCF) which inserted into a standard single-mode fiber (SMF) with two waist-enlarged bitapers was proposed for high temperature measurement. MZIs with different lengths were fabricated, and the relationship between length and interference period was studied. The fast Fourier transform (FFT) method was used to determine the transmitted spectra of MZIs, and the results indicate that LP01 and LP02 modes are the main modes. The MZI has a high temperature sensitivity of 0.087 nm/°C with a good linearity of 99.8% from 30 to 1000 °C. Because it has advantages of compact size, easy fabrication, high sensitivity, high mechanical strength and wide sensing range, the MZI can be used for high sensitivity temperature measurement. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect