All-fiber Mach-Zehnder curvature sensor based on multimode interference combined with a long-period grating

O. Frazão; J. Viegas; P. Caldas; J. L. Santos; F. M. Araújo; L. A. Ferreira; F. Farahi

doi:10.1364/OL.32.003074

All-fiber Mach-Zehnder curvature sensor based on multimode interference combined with a long-period grating

O. Frazão
, J. Viegas
, P. Caldas
, J. L. Santos
, F. M. Araújo
, L. A. Ferreira
, F. Farahi

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

161 Scopus citations

Abstract

A novel Mach-Zehnder interferometer based on a fiber multimode interference structure combined with a long-period fiber grating (LPG) is proposed. The multimode interference is achieved through the use of a MMF section spliced between two single-mode fibers, with a length adjusted to couple a fraction of light into the cladding modes. A LPG placed after the MMF couples light back into the fiber core, completing the Mach-Zehnder interferometer. This novel configuration was demonstrated as a bending sensor.

Original language	British English
Pages (from-to)	3074-3076
Number of pages	3
Journal	Optics Letters
Volume	32
Issue number	21
DOIs	https://doi.org/10.1364/OL.32.003074
State	Published - 1 Nov 2007

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10.1364/OL.32.003074

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abstract = "A novel Mach-Zehnder interferometer based on a fiber multimode interference structure combined with a long-period fiber grating (LPG) is proposed. The multimode interference is achieved through the use of a MMF section spliced between two single-mode fibers, with a length adjusted to couple a fraction of light into the cladding modes. A LPG placed after the MMF couples light back into the fiber core, completing the Mach-Zehnder interferometer. This novel configuration was demonstrated as a bending sensor.",

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AU - Frazão, O.

AU - Viegas, J.

AU - Caldas, P.

AU - Santos, J. L.

AU - Araújo, F. M.

AU - Ferreira, L. A.

AU - Farahi, F.

PY - 2007/11/1

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N2 - A novel Mach-Zehnder interferometer based on a fiber multimode interference structure combined with a long-period fiber grating (LPG) is proposed. The multimode interference is achieved through the use of a MMF section spliced between two single-mode fibers, with a length adjusted to couple a fraction of light into the cladding modes. A LPG placed after the MMF couples light back into the fiber core, completing the Mach-Zehnder interferometer. This novel configuration was demonstrated as a bending sensor.

AB - A novel Mach-Zehnder interferometer based on a fiber multimode interference structure combined with a long-period fiber grating (LPG) is proposed. The multimode interference is achieved through the use of a MMF section spliced between two single-mode fibers, with a length adjusted to couple a fraction of light into the cladding modes. A LPG placed after the MMF couples light back into the fiber core, completing the Mach-Zehnder interferometer. This novel configuration was demonstrated as a bending sensor.

UR - https://www.scopus.com/pages/publications/40149108796

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DO - 10.1364/OL.32.003074

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JF - Optics Letters

IS - 21

ER -

All-fiber Mach-Zehnder curvature sensor based on multimode interference combined with a long-period grating

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