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Torsion sensing setup based on a three beam path Mach–Zehnder interferometer
Author(s) -
SierraHernandez Juan M.,
CastilloGuzman Arturo,
SelvasAguilar Romeo,
VargasRodriguez Everardo,
GallegosArellano Eloisa,
GuzmanChavez Dinora. A.,
EstudilloAyala Julian M.,
JaureguiVazquez Daniel,
RojasLaguna Roberto
Publication year - 2015
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29208
Subject(s) - mach–zehnder interferometer , interferometry , optics , torsion (gastropod) , photonic crystal fiber , cladding (metalworking) , materials science , physics , optical fiber , medicine , surgery , metallurgy
ABSTRACT In this letter, a torsion sensing arrangement based on a three beam path Mach–Zehnder interferometer (MZI) is presented. The MZI with three beam paths was fabricated by fusion splicing a piece of double ytterbium‐doped double‐cladding photonic crystal fiber (Yb‐d‐DPCF) between two segments of single mode fiber (SMF). Moreover, in our sensing arrangement the Yb‐d‐DPCF segment is acting both as the MZI as the gain medium. Here, a spectral MZI fringe shifting is induced by applying torsion over the Yb‐d‐DPCF. By this setup, a torsion sensitivity of 0.001 nm/° was achieved. Finally, it is shown that the sensing arrangement is compact and robust. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1857–1860, 2015