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Proceedings Paper

Hollow-core negative curvature fiber: a novel platform for lab-on-a-fiber
Author(s): Ying-Ying Wang; Xiao-Cong Wang; Shoufei Gao; Wei Ding; Pu Wang
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Paper Abstract

Hollow-core photonic crystal fiber (HC-PCF) has been proved to be a versatile platform for lab-on-a-fiber applications. By filling the fiber with various gases, liquids or solid materials, the light-matter interaction could be greatly enhanced. Many novel optical phenomena that are unattainable in free-space could be easily identified inside the fiber. Such a platform offers a promising route for creating compact, integrable and biocompatible all-fiber multifunctional optical devices. Here, we review our recent progress in developing a novel HC-PCF coined "hollow-core negative curvature fiber" (NCF) that could provide light guidance at spectral ranges covering from UV, visible, NIR to MIR. These NCFs show attributes of low transmission loss, octave-spanning transmission bandwidth, high damage threshold and single modeness. As a proof-of-concept demonstration for lab-on-a-fiber applications, we filled one of the fibers with ethanol (refractive index 1.36) to form a liquid-core anti-resonant fiber. At a low volume of 1 μL, Raman signal from ethanol was observed at a pump power of 2 mW. Such a high performance NCF opens a window for applications in fiber-enhanced spectroscopy, biochemical sensing and nano-plasmonics.

Paper Details

Date Published: 22 February 2018
PDF: 9 pages
Proc. SPIE 10536, Smart Photonic and Optoelectronic Integrated Circuits XX, 105360I (22 February 2018); doi: 10.1117/12.2296349
Show Author Affiliations
Ying-Ying Wang, Beijing Univ. of Technology (China)
Xiao-Cong Wang, Beijing Univ. of Technology (China)
Shoufei Gao, Beijing Univ. of Technology (China)
Wei Ding, Institute of Physics (China)
Pu Wang, Beijing Univ. of Technology (China)


Published in SPIE Proceedings Vol. 10536:
Smart Photonic and Optoelectronic Integrated Circuits XX
Sailing He; El-Hang Lee, Editor(s)

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