Chiral diffraction gratings in twisted microstructured fibers

Chiral diffraction gratings in twisted microstructured fibers

We observed dips in transmission spectra of uniformly twisted pure-silica microstructured fibers. The spectral positions of the dips and their insensitivity to the surrounding medium are consistent with Bragg diffraction from the helical structure. The reproducibility of the variation of the dip wav...

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Veröffentlicht in:Optics letters 2010-02, Vol.35 (3), p.342-344
Hauptverfasser: CHURIKOV, Victor M, KOPP, Victor I, GENACK, Azriel Z
Format: Artikel
Sprache:eng
Schlagworte:
Exact sciences and technology
Fiber optics
Fundamental areas of phenomenology (including applications)
Gratings
Optical elements, devices, and systems
Optics
Physics
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Zusammenfassung:We observed dips in transmission spectra of uniformly twisted pure-silica microstructured fibers. The spectral positions of the dips and their insensitivity to the surrounding medium are consistent with Bragg diffraction from the helical structure. The reproducibility of the variation of the dip wavelength with temperature up to 1000 degrees C makes the chiral diffraction grating suitable for high-temperature sensing.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.35.000342