Abstract

The fabrication and characterization of long-period gratings (LPGs) in fiber tapers is presented alongside supporting theory. The devices possess a high sensitivity to the index of aqueous solutions due to an observed spectral bifurcation effect, yielding a limiting index resolution of ±8.5 × 10^-5 for solutions with an index in the range 1.330-1.335.

© 2006 IEEE

Long-period grating fabricated by periodically tapering standard single-mode fiber

Li-Yang Shao, Jian Zhao, Xinyong Dong, H. Y. Tam, C. Lu, and Sailing He
Appl. Opt. 47(10) 1549-1552 (2008)

Refractive index sensing based on Mach–Zehnder interferometer formed by three cascaded single-mode fiber tapers

Di Wu, Tao Zhu, Ming Deng, De-Wen Duan, Lei-Lei Shi, Jun Yao, and Yun-Jiang Rao
Appl. Opt. 50(11) 1548-1553 (2011)

Refractive index and temperature sensitivity characteristics of a micro-slot fiber Bragg grating

Pouneh Saffari, Zhijun Yan, Kaiming Zhou, and Lin Zhang
Appl. Opt. 51(20) 4715-4721 (2012)

Sensitivity of photonic crystal fiber grating sensors: biosensing, refractive index, strain, and temperature sensing

Lars Rindorf and Ole Bang
J. Opt. Soc. Am. B 25(3) 310-324 (2008)

Temperature sensing through long period fiber gratings mechanically induced on tapered optical fibers

María Guadalupe Pulido-Navarro, Ponciano Jorge Escamilla-Ambrosio, Sigifredo Marrujo-García, José Alfredo Álvarez-Chávez, and Fernando Martínez-Piñón
Appl. Opt. 56(19) 5526-5531 (2017)