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Title: High-temperature sensor based on 45° tilted fiber end fabricated by femtosecond laser
Authors: Yu, Y
Zhou, W
Ma, J
Ruan, S
Zhang, Y
Huang, Q
Chen, X
Keywords: Laser machining
Optical device fabrication
Optical fiber applications
Optical fiber devices
Optical fiber interference
Temperature measurement
Issue Date: 2016
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE photonics technology letters, 2016, v. 28, no. 6, 7360131, p. 653-656 How to cite?
Journal: IEEE photonics technology letters 
Abstract: In this letter, we proposed and experimentally demonstrated a novel fiber sensing head based on 45° tilted fiber end for high-temperature measurement. The sensing head was fabricated by femtosecond laser using a line-scanning method. The light is mainly split into two beams at the 45° tilted fiber end, which forms a Michelson interference with a fringe visibility of ∼ 20 dB. The experimental consequences show that the sensing head can withstand high temperature up to 800 °C and the temperature sensitivity is 19.7 pm/°C at 600 °C and 1605 nm. The merits of the sensing head are extremely compact, low cost, simple in configuration, easy for batch fabrication, and available to detect the temperature at precise location in microsize space.
ISSN: 1041-1135
EISSN: 1941-0174
DOI: 10.1109/LPT.2015.2504095
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