Title :
Temperature Sensor Based on Quantum Dots Solution Encapsulated in Photonic Crystal Fiber
Author :
Xiaojin Yin ; Wenyuan Wang ; Yongqin Yu ; Youfu Geng ; Xuejin Li
Author_Institution :
Shenzhen Key Lab. of Sensor Technol., Shenzhen Univ., Shenzhen, China
Abstract :
A luminescence temperature sensor was proposed based on quantum dots aqueous solution encapsulated in a photonic crystal fiber and sandwich structure by fusion splicing two multimode fibers end-to-end. The relationships of the luminescent peak, intensity, and full-width at half-maximum (FWHM) of the luminescent emission band with the temperature are investigated. A self-referenced method is used to optimize the relationship between intensity and temperature. The experimental results indicate that the sensitivities are 130.9pm/°C, 67pm/°C and -0.008/°C, respectively, with favorable repeatability for the luminescent peak, the FWHM, and the self-referenced intensity in the temperature range from -10 °C to 120 °C.
Keywords :
encapsulation; fibre optic sensors; holey fibres; luminescence; photonic crystals; quantum dots; sensor fusion; splicing; temperature sensors; FWHM; encapsulation; full-width at half-maximum; fusion splicing; luminescence temperature sensor; luminescent emission band; multimode fiber; photonic crystal fiber; quantum dot solution; sandwich structure; temperature -10 degC to 120 degC; Luminescence; Optical fiber sensors; Optical fibers; Quantum dots; Temperature measurement; Temperature sensors; Quantum dots; luminescence; photonic crystal fiber; temperature sensing;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2014.2380780
