Linear all-fiber temperature sensor based on macro-bent erbium doped fiber
Document Type
Article
Publication Date
1-1-2010
Abstract
A new all fiber temperature sensor is proposed and demonstrated based on a pair of 1 meter erbium-doped fiber (EDF), which are respectively macro-bent and straight. The sensor has a linear normalized loss (dB) response to temperature at 6.5 mm bending radius and 1580 nm input wavelength. The main advantage of this sensor is high temperature resolution (less than 1 degrees C) and sensitivity (0.03 dB/degrees C) due to combination of temperature dependence of EDF and bending loss. The proposed silica based sensor, has the potential for wide range and high temperature applications in harsh environments. [GRAPHICS] (C) 2010 by Astro Ltd. Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA
Keywords
Sensor, temperature, macro-bending, EDF, high concentration
Divisions
fac_eng
Publication Title
Laser Physics Letters
Volume
7
Issue
10
Publisher
John Wiley & Sons
Publisher Location
PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY