Abstract
We present a new fiber-optic high-temperature sensor based on a thin-core fiber (TCF) modal interferometer. A thin-core fiber, whose core radius is about half of the radius of a standard single-mode fiber (SMF), is inserted between standard SMFs to form an extremely simple in-fiber modal interferometer. The wavelength of the transmission dip increases linearly with the temperature. Experimental demonstration shows that it can be used to sense temperature up to 850°C with a sensitivity of about 18.3 pm/°CC.
Original language | English |
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Article number | 5482084 |
Pages (from-to) | 1415-1418 |
Number of pages | 4 |
Journal | IEEE Sensors Journal |
Volume | 10 |
Issue number | 9 |
DOIs | |
Publication status | Published - 20 Jul 2010 |
Externally published | Yes |
Keywords
- Fiber modal interferometer
- fiber-optic sensor
- high-temperature sensor
ASJC Scopus subject areas
- Instrumentation
- Electrical and Electronic Engineering