Tunable Multimode Fiber Based Filter and Its Application in Cost-Effective Interrogation of Fiber-Optic Temperature Sensors

We present a new tunable all-fiber compact multimode fiber (MMF)-based filter and its applications in fiber sensors. Using the matrix optics approach, we theoretically analyze the transmission characteristics of the tunable filter. The expression of the transmission of the optical filter is the same...

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Main Authors: Li Wei, Anum Khattak, Connor Martz, Da-Peng Zhou
Format: Article
Language:English
Published: IEEE 2017-01-01
Series:IEEE Photonics Journal
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Online Access:https://ieeexplore.ieee.org/document/7875174/
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author Li Wei
Anum Khattak
Connor Martz
Da-Peng Zhou
author_facet Li Wei
Anum Khattak
Connor Martz
Da-Peng Zhou
author_sort Li Wei
collection DOAJ
description We present a new tunable all-fiber compact multimode fiber (MMF)-based filter and its applications in fiber sensors. Using the matrix optics approach, we theoretically analyze the transmission characteristics of the tunable filter. The expression of the transmission of the optical filter is the same as that of a regular Mach–Zehnder interferometer (MZI) but with an additional optical phase shift in the sinusoidal function, which makes the MMF-based filter tunable. The phase shift could be changed by properly adjusting a polarization controller where the MMF is simply coiled into. The theoretical result has been verified by our experiment. The proposed tunable filter has been employed for intensity interrogation of a fiber Bragg grating (FBG)-based temperature sensor where the MMF-based filter serves as an edge filter. With the tuning technique, we are able to set the FBG peak to the linear regime of the interference pattern to achieve optimum sensing operation range. By monitoring the optical power changes, it is feasible to obtain information that permits temperature measurement with a simple and low-cost structure.
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institution Kabale University
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publishDate 2017-01-01
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spelling doaj-art-eebfd32a007444c9992a480824f370bc2025-08-20T03:32:37ZengIEEEIEEE Photonics Journal1943-06552017-01-01921810.1109/JPHOT.2017.26796017875174Tunable Multimode Fiber Based Filter and Its Application in Cost-Effective Interrogation of Fiber-Optic Temperature SensorsLi Wei0Anum Khattak1Connor Martz2Da-Peng Zhou3Department of Physics and Computer Science, Wilfrid Laurier University, Waterloo, CanadaDepartment of Physics and Computer Science, Wilfrid Laurier University, Waterloo, CanadaDepartment of Physics and Computer Science, Wilfrid Laurier University, Waterloo, CanadaNFX Systems, Ottawa, CanadaWe present a new tunable all-fiber compact multimode fiber (MMF)-based filter and its applications in fiber sensors. Using the matrix optics approach, we theoretically analyze the transmission characteristics of the tunable filter. The expression of the transmission of the optical filter is the same as that of a regular Mach–Zehnder interferometer (MZI) but with an additional optical phase shift in the sinusoidal function, which makes the MMF-based filter tunable. The phase shift could be changed by properly adjusting a polarization controller where the MMF is simply coiled into. The theoretical result has been verified by our experiment. The proposed tunable filter has been employed for intensity interrogation of a fiber Bragg grating (FBG)-based temperature sensor where the MMF-based filter serves as an edge filter. With the tuning technique, we are able to set the FBG peak to the linear regime of the interference pattern to achieve optimum sensing operation range. By monitoring the optical power changes, it is feasible to obtain information that permits temperature measurement with a simple and low-cost structure.https://ieeexplore.ieee.org/document/7875174/Tunable optical filtersoptical fiber sensorsmultimode fibers (MMFs)fiber Bragg grating (FBG)
spellingShingle Li Wei
Anum Khattak
Connor Martz
Da-Peng Zhou
Tunable Multimode Fiber Based Filter and Its Application in Cost-Effective Interrogation of Fiber-Optic Temperature Sensors
IEEE Photonics Journal
Tunable optical filters
optical fiber sensors
multimode fibers (MMFs)
fiber Bragg grating (FBG)
title Tunable Multimode Fiber Based Filter and Its Application in Cost-Effective Interrogation of Fiber-Optic Temperature Sensors
title_full Tunable Multimode Fiber Based Filter and Its Application in Cost-Effective Interrogation of Fiber-Optic Temperature Sensors
title_fullStr Tunable Multimode Fiber Based Filter and Its Application in Cost-Effective Interrogation of Fiber-Optic Temperature Sensors
title_full_unstemmed Tunable Multimode Fiber Based Filter and Its Application in Cost-Effective Interrogation of Fiber-Optic Temperature Sensors
title_short Tunable Multimode Fiber Based Filter and Its Application in Cost-Effective Interrogation of Fiber-Optic Temperature Sensors
title_sort tunable multimode fiber based filter and its application in cost effective interrogation of fiber optic temperature sensors
topic Tunable optical filters
optical fiber sensors
multimode fibers (MMFs)
fiber Bragg grating (FBG)
url https://ieeexplore.ieee.org/document/7875174/
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AT anumkhattak tunablemultimodefiberbasedfilteranditsapplicationincosteffectiveinterrogationoffiberoptictemperaturesensors
AT connormartz tunablemultimodefiberbasedfilteranditsapplicationincosteffectiveinterrogationoffiberoptictemperaturesensors
AT dapengzhou tunablemultimodefiberbasedfilteranditsapplicationincosteffectiveinterrogationoffiberoptictemperaturesensors