Temperature-independent strain sensor made from tapered holey optical fiber

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...

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Bibliographic Details
Published in:Optics letters 2006-02, Vol.31 (3), p.305-307
Main Authors: VILLATORO, Joel, MINKOVICH, Vladimir P, MONZON-HERNANDEZ, David
Format: Article
Language:English
Subjects:
Applied sciences
Circuit properties
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Fiber waveguides, couplers, and arrays
Integrated optics. Optical fibers and wave guides
Optical and optoelectronic circuits
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Summary: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.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.31.000305