Abstract
A novel in-fiber microsphere air-cavity Fabry-Perot interferometer (FPI) sensor is constructed and demonstrated for strain and temperature measurement. The microsphere air-cavity is formed by ablating, with a focused femtosecond infrared laser, the endface of a single mode fiber (SMF) to form a crater at its center, and then splices this fiber end to a second SMF using a fusion splicer. The sensor demonstrates a strain sensitivity of 2.44 pm/με and a low temperature sensitivity of 0.87 pm°C up to 600 °C.
Original language | English |
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Title of host publication | 22nd International Conference on Optical Fiber Sensors |
Volume | 8421 |
DOIs | |
Publication status | Published - 1 Dec 2012 |
Event | 22nd International Conference on Optical Fiber Sensors - Beijing, China Duration: 15 Oct 2012 → 19 Oct 2012 |
Conference
Conference | 22nd International Conference on Optical Fiber Sensors |
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Country/Territory | China |
City | Beijing |
Period | 15/10/12 → 19/10/12 |
Keywords
- Interferometer
- Microsphere air-cavity
- Optical fiber sensor
- Strain sensing
ASJC Scopus subject areas
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics