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Updated: Feb 20, 2026

Design and Fabrication of an Optical Fiber Made of Water
Published on: November 8, 2018
Guiding light in a water core all-solid cladding photonic band gap fiber - an innovative platform for fiber-based
Abstract:
We present a single-channel photonic band gap fiber design allowing for guiding light inside a water core, which is surrounded by solid microstructured cladding, consisting of an array of high refractive index strands in silica. We address all relevant properties and show that the microstructure substantially reduces loss. We also introduce a ray reflection model, matching numerical modelling and allowing for time-effective large-scale parameter sweeps. Our single channel fiber concept is particularly valuable for applications demanding fast and reliable injection of liquids into the core, with potential impact in fields such as optofluidics, spectroscopy or bioanalytics.
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