KEYWORDS: Femtosecond phenomena, Sensors, Temperature metrology, Structured optical fibers, Temperature sensors, Lithium, Single mode fibers, Michelson interferometers, Interferometers, Head
A 45° fiber cantilever beam for high temperature measurement was fabricated by femtosecond laser in single mode fiber. The temperature sensitivity is obtained to be about 17 pm/℃ at 800 ℃ and 1560 nm. The 45° fiber cantilever beam possesses good repeatability and stability in high temperature. The sensor is small in size, cheap and good stability.
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