Fabry-Perot sensors for dynamic studies using spectrally based passive quadrature signal processing

Y. L. Lo; J. S. Sirkis

doi:10.1007/BF02317846

Fabry-Perot sensors for dynamic studies using spectrally based passive quadrature signal processing

Y. L. Lo, J. S. Sirkis

Department of Mechanical Engineering

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

8 Citations (Scopus)

Abstract

This paper describes a simple, optically passive detection scheme for in-line Fabry-Perot etalon (ILFE) sensors that is also useful for intrinsic Fabry-Perot (IFP) and extrinsic Fabry-Perot interferometer (EFPI) sensors. This detection scheme is based on two spectrally shifted Bragg wavelengths from in-line Bragg gratings to produce two quadrature phase shifted signals from the spectral transfer function of the Fabry-Perot sensor. Using the amplified spontaneous emission (ASE) from an erbium-doped fiber amplifier (EDFA) as a low-coherence, high-power broad-band source, the passive detection technique is used to demonstrate the use of ILFE sensors in high strain rate dynamics studies. This study is designed to characterize the high strain rate response of optical fiber sensors and test their ability to monitor dynamic strain changes resulting from one-dimensional stress wave propagation.

Original language	English
Pages (from-to)	119-125
Number of pages	7
Journal	Experimental Mechanics
Volume	37
Issue number	2
DOIs	https://doi.org/10.1007/BF02317846
Publication status	Published - 1997 Jun

All Science Journal Classification (ASJC) codes

Aerospace Engineering
Mechanics of Materials
Mechanical Engineering

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@article{c7ae64b369b348cfb8355d291521fc5a,

title = "Fabry-Perot sensors for dynamic studies using spectrally based passive quadrature signal processing",

abstract = "This paper describes a simple, optically passive detection scheme for in-line Fabry-Perot etalon (ILFE) sensors that is also useful for intrinsic Fabry-Perot (IFP) and extrinsic Fabry-Perot interferometer (EFPI) sensors. This detection scheme is based on two spectrally shifted Bragg wavelengths from in-line Bragg gratings to produce two quadrature phase shifted signals from the spectral transfer function of the Fabry-Perot sensor. Using the amplified spontaneous emission (ASE) from an erbium-doped fiber amplifier (EDFA) as a low-coherence, high-power broad-band source, the passive detection technique is used to demonstrate the use of ILFE sensors in high strain rate dynamics studies. This study is designed to characterize the high strain rate response of optical fiber sensors and test their ability to monitor dynamic strain changes resulting from one-dimensional stress wave propagation.",

author = "Lo, {Y. L.} and Sirkis, {J. S.}",

note = "Funding Information: The authors would like to thank Dr. A. M. Vengsarkar at AT&T Bell Laboratories for providing Bragg-grating wavelength filters used in this research and Jeff Andrew of Lock-heed Martin Aero and Naval Systems for providing the EDFA used in the experiments. The support of the Army Research Office Grant No. DAAL 03-92-G-0121 (Dr. Gary Anderson, Technical Monitor) is gratefully acknowledged.",

year = "1997",

month = jun,

doi = "10.1007/BF02317846",

language = "English",

volume = "37",

pages = "119--125",

journal = "Experimental Mechanics",

issn = "0014-4851",

publisher = "Springer New York",

number = "2",

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TY - JOUR

T1 - Fabry-Perot sensors for dynamic studies using spectrally based passive quadrature signal processing

AU - Lo, Y. L.

AU - Sirkis, J. S.

N1 - Funding Information: The authors would like to thank Dr. A. M. Vengsarkar at AT&T Bell Laboratories for providing Bragg-grating wavelength filters used in this research and Jeff Andrew of Lock-heed Martin Aero and Naval Systems for providing the EDFA used in the experiments. The support of the Army Research Office Grant No. DAAL 03-92-G-0121 (Dr. Gary Anderson, Technical Monitor) is gratefully acknowledged.

PY - 1997/6

Y1 - 1997/6

N2 - This paper describes a simple, optically passive detection scheme for in-line Fabry-Perot etalon (ILFE) sensors that is also useful for intrinsic Fabry-Perot (IFP) and extrinsic Fabry-Perot interferometer (EFPI) sensors. This detection scheme is based on two spectrally shifted Bragg wavelengths from in-line Bragg gratings to produce two quadrature phase shifted signals from the spectral transfer function of the Fabry-Perot sensor. Using the amplified spontaneous emission (ASE) from an erbium-doped fiber amplifier (EDFA) as a low-coherence, high-power broad-band source, the passive detection technique is used to demonstrate the use of ILFE sensors in high strain rate dynamics studies. This study is designed to characterize the high strain rate response of optical fiber sensors and test their ability to monitor dynamic strain changes resulting from one-dimensional stress wave propagation.

AB - This paper describes a simple, optically passive detection scheme for in-line Fabry-Perot etalon (ILFE) sensors that is also useful for intrinsic Fabry-Perot (IFP) and extrinsic Fabry-Perot interferometer (EFPI) sensors. This detection scheme is based on two spectrally shifted Bragg wavelengths from in-line Bragg gratings to produce two quadrature phase shifted signals from the spectral transfer function of the Fabry-Perot sensor. Using the amplified spontaneous emission (ASE) from an erbium-doped fiber amplifier (EDFA) as a low-coherence, high-power broad-band source, the passive detection technique is used to demonstrate the use of ILFE sensors in high strain rate dynamics studies. This study is designed to characterize the high strain rate response of optical fiber sensors and test their ability to monitor dynamic strain changes resulting from one-dimensional stress wave propagation.

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DO - 10.1007/BF02317846

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VL - 37

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EP - 125

JO - Experimental Mechanics

JF - Experimental Mechanics

IS - 2

ER -

Fabry-Perot sensors for dynamic studies using spectrally based passive quadrature signal processing

Abstract

All Science Journal Classification (ASJC) codes

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