Open AccessOptical fiber with nanostructured cladding of TiO_2 nanoparticles self-assembled onto a side polished fiber and its temperature sensing
Author(s) -
Huihui Lu,
Zhengwen Tian,
Haiping Yu,
Bing Yang,
Guangyin Jing,
Guozhen Liao,
Jun Zhang,
Jianhui Yu,
Jieyuan Tang,
Yunhan Luo,
Zhe Chen
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.032502
Subject(s) - materials science , cladding (metalworking) , optical fiber , nanoparticle , photonic crystal fiber , optoelectronics , fiber optic sensor , fiber , optics , optical power , nanotechnology , composite material , laser , physics
We demonstrated temperature sensing of a fiber with nanostructured cladding, which was constructed by titanium dioxide TiO2 nanoparticles self-assembled onto a side polished optical fiber (SPF). Significantly enhanced interaction between the propagating light and the TiO2 nanoparticles (TN) can be obtained via strong evanescent field of the SPF. The strong light-TN interaction results in temperature sensing with a maximum optical power variation of ~4dB in SPF experimentally for an external environment temperature varying from -7.8°C to 77.6°C. The novel temperature sensing device shows a linear correlation coefficient of better than 99.4%, and a sensitivity of ~0.044 dB/°C. The TN-based all-fiber-optic temperature sensing characteristics was successfully demonstrated, and it is compatible with fiber-optic interconnections and high potential in photonics applications.