Dual tapered optical fiber for simultaneous detection of curvature and strain

J.R. Ek-Ek; D. Jauregui-Vazquez; J.P. Korterik; M. Benedictus; F. Martinez-Pinon; H.L. Offerhaus; J.A. Alvarez-Chavez

doi:10.1016/j.yofte.2022.102843

Dual tapered optical fiber for simultaneous detection of curvature and strain

J.R. Ek-Ek, D. Jauregui-Vazquez, J.P. Korterik, M. Benedictus, F. Martinez-Pinon, H.L. Offerhaus, J.A. Alvarez-Chavez^*

^*Corresponding author for this work

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

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Abstract

We present a study of simultaneous detection of curvature and strain in optical fiber. This contains a micro tapered section and a nano tapered section. The transmission spectrum shows interference of multiple modes, and the frequency of the modulation can be used to distinguish and monitor specific physical parts of the fiber structure. The curvature detection is achieved using one specific modulation frequency component; this component shows an intensity modulation with a sensitivity of 0.26 dB/m−1. The strain information is extracted by applying a phase analysis over a second spatial frequency component; this analysis shows a sensitivity close to 8 mrad/με. The strain phase analysis exhibits a linear response, and the intensity curvature data indicates an exponential model. The proposed signal analysis can be employed for simultaneous detection in optical fiber interferometric sensors.

Original language	English
Article number	102843
Journal	Optical Fiber Technology
Volume	69
Early online date	11 Feb 2022
DOIs	https://doi.org/10.1016/j.yofte.2022.102843
Publication status	Published - 1 Mar 2022

Keywords

UT-Hybrid-D

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title = "Dual tapered optical fiber for simultaneous detection of curvature and strain",

abstract = "We present a study of simultaneous detection of curvature and strain in optical fiber. This contains a micro tapered section and a nano tapered section. The transmission spectrum shows interference of multiple modes, and the frequency of the modulation can be used to distinguish and monitor specific physical parts of the fiber structure. The curvature detection is achieved using one specific modulation frequency component; this component shows an intensity modulation with a sensitivity of 0.26 dB/m−1. The strain information is extracted by applying a phase analysis over a second spatial frequency component; this analysis shows a sensitivity close to 8 mrad/με. The strain phase analysis exhibits a linear response, and the intensity curvature data indicates an exponential model. The proposed signal analysis can be employed for simultaneous detection in optical fiber interferometric sensors.",

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note = "Funding Information: J.R. Ek-Ek is grateful to IPN-CIITEC and CONACYT in Mexico for the support under the scholarship 744337, and the Optical Sciences group at The University of Twente in The Netherlands for financing their projects. D. Jauregui-Vazquez appreciates the support of the Optical Sciences Group at the University of Twente and CONACYT Sabbatical Stay 2021 290595. Publisher Copyright: {\textcopyright} 2022 University of Twente",

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T1 - Dual tapered optical fiber for simultaneous detection of curvature and strain

AU - Ek-Ek, J.R.

AU - Jauregui-Vazquez, D.

AU - Korterik, J.P.

AU - Benedictus, M.

AU - Martinez-Pinon, F.

AU - Offerhaus, H.L.

AU - Alvarez-Chavez, J.A.

N1 - Funding Information: J.R. Ek-Ek is grateful to IPN-CIITEC and CONACYT in Mexico for the support under the scholarship 744337, and the Optical Sciences group at The University of Twente in The Netherlands for financing their projects. D. Jauregui-Vazquez appreciates the support of the Optical Sciences Group at the University of Twente and CONACYT Sabbatical Stay 2021 290595. Publisher Copyright: © 2022 University of Twente

PY - 2022/3/1

Y1 - 2022/3/1

N2 - We present a study of simultaneous detection of curvature and strain in optical fiber. This contains a micro tapered section and a nano tapered section. The transmission spectrum shows interference of multiple modes, and the frequency of the modulation can be used to distinguish and monitor specific physical parts of the fiber structure. The curvature detection is achieved using one specific modulation frequency component; this component shows an intensity modulation with a sensitivity of 0.26 dB/m−1. The strain information is extracted by applying a phase analysis over a second spatial frequency component; this analysis shows a sensitivity close to 8 mrad/με. The strain phase analysis exhibits a linear response, and the intensity curvature data indicates an exponential model. The proposed signal analysis can be employed for simultaneous detection in optical fiber interferometric sensors.

AB - We present a study of simultaneous detection of curvature and strain in optical fiber. This contains a micro tapered section and a nano tapered section. The transmission spectrum shows interference of multiple modes, and the frequency of the modulation can be used to distinguish and monitor specific physical parts of the fiber structure. The curvature detection is achieved using one specific modulation frequency component; this component shows an intensity modulation with a sensitivity of 0.26 dB/m−1. The strain information is extracted by applying a phase analysis over a second spatial frequency component; this analysis shows a sensitivity close to 8 mrad/με. The strain phase analysis exhibits a linear response, and the intensity curvature data indicates an exponential model. The proposed signal analysis can be employed for simultaneous detection in optical fiber interferometric sensors.

KW - UT-Hybrid-D

U2 - 10.1016/j.yofte.2022.102843

DO - 10.1016/j.yofte.2022.102843

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VL - 69

JO - Optical Fiber Technology

JF - Optical Fiber Technology

SN - 1068-5200

M1 - 102843

ER -

Dual tapered optical fiber for simultaneous detection of curvature and strain

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