Micro-structured fiber interferometer as sensitive temperature sensor

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Date
2013
Volume
3
Issue
3
Journal
Photonic Sensors
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Book Title
Publisher
Heidelberg : Springer
Abstract

We report on a fast and sensitive temperature sensor using a micro-structured or photonic crystal fiber interferometer with a high germanium doped fiber core. The wavelength sensitivity for temperature variation was as high as δλ/δT= 78 pm/ C up to 500 C, which was 6 times more sensitive than the fiber Bragg grating temperature sensitivity of δλ/δT= 13 pm/ C at 1550 nm. The sensor device was investigated concerning the sensitivity characteristics and response time.

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CC BY 2.0 Unported