A miniaturized flexible surface attachable interrogator for hybrid optical fiber sensing

Manjusha Ramakrishnan; Ginu Rajan; Yuliya Semenova; Tomasz Wolinski; Andrzej Domański; Gerald Farrell

doi:10.1002/mop.28284

A miniaturized flexible surface attachable interrogator for hybrid optical fiber sensing

Manjusha Ramakrishnan^*, Ginu Rajan, Yuliya Semenova, Tomasz Wolinski, Andrzej Domański, Gerald Farrell

^*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

In this article, we propose a miniaturized flexible interrogator for polarimetric and fiber Bragg grating (FBG) sensors based hybrid sensing scheme embedded in composite materials. The flexible interrogation module comprises of an arrayed waveguide (AWG) for FBG demodulation and an electro optic mach-zehnder interferometric (EO-MZI) intensity modulator for polarimetric sensor demodulation. A customized design of AWG and EO-MZI are presented, and the designed performance resulted in a wide channel spacing of 5 nm and low cross talk of -34 dB between adjacent channels for the AWG, and a low Vπ voltage of ±1.5 V for the MZI-EO. The method for fabrication of the flexible interrogator device is also presented, based on post processing of platinum coated polyimide substrate. The film type interrogation module is compact, with a size of 3.4 × 0.1 × 0.01 cm³. The surface attachable flexible hybrid sensor interrogator is proposed to integrate with photo detector arrays and wireless communication technology to enhance the competency of hybrid sensing scheme in smart sensing composite parts in motion for applications in aircraft, wind rotor blades and so forth. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1167-1174, 2014

Original language	English
Pages (from-to)	1167-1174
Number of pages	8
Journal	Microwave and Optical Technology Letters
Volume	56
Issue number	5
DOIs	https://doi.org/10.1002/mop.28284
Publication status	Published - May 2014
Externally published	Yes

Keywords

arrayed waveguide grating
electro optic Mach-Zehnder modulator
fiber Bragg grating sensor
hybrid sensing
miniaturized flexible interrogator
polarimetric sensor

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10.1002/mop.28284

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title = "A miniaturized flexible surface attachable interrogator for hybrid optical fiber sensing",

abstract = "In this article, we propose a miniaturized flexible interrogator for polarimetric and fiber Bragg grating (FBG) sensors based hybrid sensing scheme embedded in composite materials. The flexible interrogation module comprises of an arrayed waveguide (AWG) for FBG demodulation and an electro optic mach-zehnder interferometric (EO-MZI) intensity modulator for polarimetric sensor demodulation. A customized design of AWG and EO-MZI are presented, and the designed performance resulted in a wide channel spacing of 5 nm and low cross talk of -34 dB between adjacent channels for the AWG, and a low Vπ voltage of ±1.5 V for the MZI-EO. The method for fabrication of the flexible interrogator device is also presented, based on post processing of platinum coated polyimide substrate. The film type interrogation module is compact, with a size of 3.4 × 0.1 × 0.01 cm3. The surface attachable flexible hybrid sensor interrogator is proposed to integrate with photo detector arrays and wireless communication technology to enhance the competency of hybrid sensing scheme in smart sensing composite parts in motion for applications in aircraft, wind rotor blades and so forth. {\textcopyright} 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1167-1174, 2014",

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author = "Manjusha Ramakrishnan and Ginu Rajan and Yuliya Semenova and Tomasz Wolinski and Andrzej Doma{\'n}ski and Gerald Farrell",

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AU - Ramakrishnan, Manjusha

AU - Rajan, Ginu

AU - Semenova, Yuliya

AU - Wolinski, Tomasz

AU - Domański, Andrzej

AU - Farrell, Gerald

PY - 2014/5

Y1 - 2014/5

N2 - In this article, we propose a miniaturized flexible interrogator for polarimetric and fiber Bragg grating (FBG) sensors based hybrid sensing scheme embedded in composite materials. The flexible interrogation module comprises of an arrayed waveguide (AWG) for FBG demodulation and an electro optic mach-zehnder interferometric (EO-MZI) intensity modulator for polarimetric sensor demodulation. A customized design of AWG and EO-MZI are presented, and the designed performance resulted in a wide channel spacing of 5 nm and low cross talk of -34 dB between adjacent channels for the AWG, and a low Vπ voltage of ±1.5 V for the MZI-EO. The method for fabrication of the flexible interrogator device is also presented, based on post processing of platinum coated polyimide substrate. The film type interrogation module is compact, with a size of 3.4 × 0.1 × 0.01 cm3. The surface attachable flexible hybrid sensor interrogator is proposed to integrate with photo detector arrays and wireless communication technology to enhance the competency of hybrid sensing scheme in smart sensing composite parts in motion for applications in aircraft, wind rotor blades and so forth. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1167-1174, 2014

AB - In this article, we propose a miniaturized flexible interrogator for polarimetric and fiber Bragg grating (FBG) sensors based hybrid sensing scheme embedded in composite materials. The flexible interrogation module comprises of an arrayed waveguide (AWG) for FBG demodulation and an electro optic mach-zehnder interferometric (EO-MZI) intensity modulator for polarimetric sensor demodulation. A customized design of AWG and EO-MZI are presented, and the designed performance resulted in a wide channel spacing of 5 nm and low cross talk of -34 dB between adjacent channels for the AWG, and a low Vπ voltage of ±1.5 V for the MZI-EO. The method for fabrication of the flexible interrogator device is also presented, based on post processing of platinum coated polyimide substrate. The film type interrogation module is compact, with a size of 3.4 × 0.1 × 0.01 cm3. The surface attachable flexible hybrid sensor interrogator is proposed to integrate with photo detector arrays and wireless communication technology to enhance the competency of hybrid sensing scheme in smart sensing composite parts in motion for applications in aircraft, wind rotor blades and so forth. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1167-1174, 2014

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KW - polarimetric sensor

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A miniaturized flexible surface attachable interrogator for hybrid optical fiber sensing

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Keywords

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