Open AccessHigh‐temperature Fabry–Perot interferometer based on mode analysis
Author(s) -
Zhao Na,
Lin Qijing,
Jiang Weile,
Jiang Zhuangde,
Wu Zirong,
Tian Bian,
Zhang Zhongkai
Publication year - 2018
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2017.0415
Subject(s) - fabry–pérot interferometer , interferometry , optics , materials science , fourier transform spectroscopy , fabrication , fourier transform , sensitivity (control systems) , transmission (telecommunications) , fourier transform infrared spectroscopy , spectrum (functional analysis) , wavelength , optoelectronics , physics , telecommunications , electronic engineering , computer science , medicine , alternative medicine , pathology , quantum mechanics , engineering
An optical fibre Fabry–Perot interferometer (FPI) is proposed and experimentally demonstrated in this work. In the fast Fourier transform spectrum of the FPI transmission spectrum, a higher order model is separated from the transmission spectrum and the spatial frequency spectrum of the higher order model is detected. As the temperature changes, the shifts of the spatial frequency spectrum will be observed. The sensitivity of the temperature is 0.128 µm −1 K −1 . The proposed sensor features the advantages of easy fabrication, compact structure and stable chemical property, and exhibits great potential in high‐temperature measurement.