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Updated: Aug 11, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
Published on: November 7, 2016
Temperature-independent strain sensor made from tapered holey optical fiber
Joel Villatoro1, Vladimir P Minkovich, David Monzón-Hernández
1Centro de Investigaciones en Optica AC, Leon, Gto, Mexico. ajv@cio.mx
Abstract:
A large-mode-area holey fiber was tapered to a point in which the airholes collapsed, and its dependence on temperature and strain was studied. The transmission spectrum of such a fiber exhibits a series of peaks owing to the interference between the modes of the solid taper waist. We found that the interference peaks shifted to shorter wavelengths as the taper was elongated. However, the peaks were insensitive to temperature. The fabrication and advantages of our novel wavelength-encoded temperature-independent strain sensor compared with other optical fiber strain sensors are discussed.
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