Fourier-transform-based spectral measurements on multiplexed fibre Bragg grating arrays

Kieran T. O'mahoney; Donal A. Flavin; Lin Zhang; Ian Bennion

doi:10.1117/12.566690

Fourier-transform-based spectral measurements on multiplexed fibre Bragg grating arrays

Kieran T. O'mahoney, Donal A. Flavin, Lin Zhang, Ian Bennion

Research output: Contribution to journal › Conference article › peer-review

Abstract

We demonstrate a Fourier Transform Spectroscopic approach to achieve high-resolution measurement of the structural detail of the reflected spectra from an infrared FBG grating array, with the inherent measurement capability over a wavelength range of 900 nm. Measurements on all gratings in the array are achieved in a single scan of the OPD, from an interferogram captured on a single InGaAs photodiode. We demonstrate the approach for measurements on standard gratings and in the case of a grating subjected to a nonuniform measurand. The OPD is referenced from a visible HeNe beam propagated on the array downlead, and we demonstrate the robustness of the measurement in the presence of the complex transverse modal structure of that reference beam.

Original language	English
Pages (from-to)	423
Journal	Proceedings of SPIE - International Society for Optical Engineering
Volume	5502
DOIs	https://doi.org/10.1117/12.566690
Publication status	Published - 9 Jun 2004
Event	Second European Workshop on Optical Fibre Sensors - Santander, Spain Duration: 9 Jun 2004 → …

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title = "Fourier-transform-based spectral measurements on multiplexed fibre Bragg grating arrays",

abstract = "We demonstrate a Fourier Transform Spectroscopic approach to achieve high-resolution measurement of the structural detail of the reflected spectra from an infrared FBG grating array, with the inherent measurement capability over a wavelength range of 900 nm. Measurements on all gratings in the array are achieved in a single scan of the OPD, from an interferogram captured on a single InGaAs photodiode. We demonstrate the approach for measurements on standard gratings and in the case of a grating subjected to a nonuniform measurand. The OPD is referenced from a visible HeNe beam propagated on the array downlead, and we demonstrate the robustness of the measurement in the presence of the complex transverse modal structure of that reference beam.",

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AU - O'mahoney, Kieran T.

AU - Flavin, Donal A.

AU - Zhang, Lin

AU - Bennion, Ian

PY - 2004/6/9

Y1 - 2004/6/9

N2 - We demonstrate a Fourier Transform Spectroscopic approach to achieve high-resolution measurement of the structural detail of the reflected spectra from an infrared FBG grating array, with the inherent measurement capability over a wavelength range of 900 nm. Measurements on all gratings in the array are achieved in a single scan of the OPD, from an interferogram captured on a single InGaAs photodiode. We demonstrate the approach for measurements on standard gratings and in the case of a grating subjected to a nonuniform measurand. The OPD is referenced from a visible HeNe beam propagated on the array downlead, and we demonstrate the robustness of the measurement in the presence of the complex transverse modal structure of that reference beam.

AB - We demonstrate a Fourier Transform Spectroscopic approach to achieve high-resolution measurement of the structural detail of the reflected spectra from an infrared FBG grating array, with the inherent measurement capability over a wavelength range of 900 nm. Measurements on all gratings in the array are achieved in a single scan of the OPD, from an interferogram captured on a single InGaAs photodiode. We demonstrate the approach for measurements on standard gratings and in the case of a grating subjected to a nonuniform measurand. The OPD is referenced from a visible HeNe beam propagated on the array downlead, and we demonstrate the robustness of the measurement in the presence of the complex transverse modal structure of that reference beam.

UR - http://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.566690

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DO - 10.1117/12.566690

M3 - Conference article

SN - 0277-786X

VL - 5502

SP - 423

JO - Proceedings of SPIE - International Society for Optical Engineering

JF - Proceedings of SPIE - International Society for Optical Engineering

T2 - Second European Workshop on Optical Fibre Sensors

Y2 - 9 June 2004

ER -

Fourier-transform-based spectral measurements on multiplexed fibre Bragg grating arrays

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