Photonic crystal fiber tip interferometer for refractive index sensing

In this paper we present an interferometer based on photonic crystal fiber (PCF) tip ended with a solid silica-sphere for refractive index sensing. The sensor is fabricated by splicing one end of the holey PCF to a single mode fiber (SMF) and applying arc at the other end to form a solid sphere. The...

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Bibliographic Details
Published inOptics letters Vol. 37; no. 8; p. 1373
Main Authors Mileńko, Karolina, Hu, Dora Juan Juan, Shum, Perry Ping, Zhang, Taishi, Lim, Jun Long, Wang, Yixin, Woliński, Tomasz R, Wei, Huifeng, Tong, Weijun
Format Journal Article
LanguageEnglish
Published United States 15.04.2012
Subjects
Air
Glycerol - chemistry
Interferometry - instrumentation
Optical Fibers
Optical Phenomena
Photons
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Summary:In this paper we present an interferometer based on photonic crystal fiber (PCF) tip ended with a solid silica-sphere for refractive index sensing. The sensor is fabricated by splicing one end of the holey PCF to a single mode fiber (SMF) and applying arc at the other end to form a solid sphere. The sensor has been experimentally tested for refractive index and temperature sensing by monitoring its wavelength shift. Measurement results show that the sensor has the resolution of the order of 8.7×10(-4) over the refractive index range of 1.33-1.40, and temperature sensitivity of the order of 10 pm/°C in the range of 20-100 °C.
ISSN:1539-4794
DOI:10.1364/OL.37.001373