Journal
SENSORS
Volume 18, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/s18082688
Keywords
high temperature sensing; cascade; Mach-Zehnder interferometer; fiber bitapers
Funding
- 973 Program [2015CB057402]
- National Natural Science Foundation of China [91748207, 51720105016]
- China Postdoctoral Science Foundation [2018T111045, 2017M613114]
- Shaanxi Postdoctoral Science Foundation [2017BSHEDZZ69]
- Fundamental Research Funds for the Central Universities [xjj2016011, xjj2017077]
- Open Foundation of the State Key Laboratory of Fluid Power and Mechatronic Systems [GZKF-201617]
- Research Project of State Key Laboratory of Mechanical System and Vibration [MSV201813]
- 111 Program [B12016]
Ask authors/readers for more resources
A temperature multipoint sensing system based on three cascade Mach-Zehnder interferometers (MZIs) is introduced. The MZIs with different lengths are fabricated based on waist-enlarged fiber bitapers. The fast Fourier transformation is applied to the overlapping transmission spectrum and the corresponding interference spectra can be obtained via the cascaded frequency spectrum based on the inverse Fourier transformation. By analyzing the drift of interference spectra, the temperature response sensitivities of 0.063 nm/degrees C, 0.071 nm/degrees C, and 0.059 nm/degrees C in different furnaces can be detected from room temperature up to 1000 degrees C, and the temperature response at different regions can be measured through the sensitivity matrix equation. These results demonstrate feasibility of multipoint measurement, which also support that the temperature sensing system provides new solution to the MZI cascade problem.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
