High sensitive fiber-optic liquid refractive index tip sensor based on a simple inline hollow glass micro-sphere

A high sensitive fiber-optic refractive index tip sensor based on a simple inline hollow glass micro-sphere is presented. The inline hollow glass micro-sphere can be automatically constructed at the splicing joint break time when splicing a hollow core photonic crystal fiber to an SMF. Simultaneousl...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2012-08, Vol.171-172, p.405-408
Main Authors: Dong, Bo, Hao, Jianzhong, Zhang, Taishi, Lim, Jun Long
Format: Article
Language:English
Subjects:
air
fiber optics
Fiber-optic Fabry–Perot interferometer
Fiber-optic refractive index tip sensor
glass
Inline hollow glass micro-sphere
Liquid refractive index sensor
refractive index
sensors (equipment)
temperature
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Summary:A high sensitive fiber-optic refractive index tip sensor based on a simple inline hollow glass micro-sphere is presented. The inline hollow glass micro-sphere can be automatically constructed at the splicing joint break time when splicing a hollow core photonic crystal fiber to an SMF. Simultaneously, the micro-sphere is tipped on the SMF end. It is temperature insensitive in the air due to its micro size and hollow cavity sphere structure. The ambient refractive index can be measured by detecting the extinction ratio variation of the sensor, with a high sensitivity.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2012.05.001