Abstract

We describe a dual-core microstructured optical fiber designed for refractive index sensing of fluids. We show that by using the exponential dependence of intercore coupling on analyte refractive index, both large range and high sensitivity can be achieved in the one device. We also show that selective filling of the microstructure with analyte can increase the device sensitivity by approximately 1 order of magnitude.

© 2010 Optical Society of America

Two-core transversally chirped microstructured optical fiber refractive index sensor

Pedro Torres, Erick Reyes-Vera, Antonio Díez, and Miguel V. Andrés
Opt. Lett. 39(6) 1593-1596 (2014)

Avoided-crossing-based ultrasensitive photonic crystal fiber refractive index sensor

Tingting Han, Yan-ge Liu, Zhi Wang, Bing Zou, Boyin Tai, and Bo Liu
Opt. Lett. 35(12) 2061-2063 (2010)

Ultrasensitive photonic crystal fiber refractive index sensor

Darran K. C. Wu, Boris T. Kuhlmey, and Benjamin J. Eggleton
Opt. Lett. 34(3) 322-324 (2009)

Microstructured-core photonic-crystal fiber for ultra-sensitive refractive index sensing

Bing Sun, Ming-Yang Chen, Yong-Kang Zhang, Ji-chang Yang, Jian-quan Yao, and Hai-Xia Cui
Opt. Express 19(5) 4091-4100 (2011)

Sensitive liquid refractive index sensors using tapered optical fiber tips

Yi-Hsin Tai and Pei-Kuen Wei
Opt. Lett. 35(7) 944-946 (2010)