Dark-Pulse Brillouin Optical Time-Domain Sensor With 20-mm Spatial Resolution

Brown, Anthony W.; Colpitts, Bruce G.; Brown, Kellie

doi:10.1109/jlt.2006.886672

Cited by 134 publications

(66 citation statements)

References 12 publications

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“…8): The pump is turned off during a short time, so that no light is reflected and the constant background amplification is stopped [17]. The acoustic wave keeps vibrating during the dark pulse and the background amplification is restored when the pump light is on again.…”

Section: Brillouin Echo Distributed Sensing (Beds)mentioning

confidence: 99%

Brillouin distributed time-domain sensing in optical fibers: state of the art and perspectives

Thévenaz

2010

Front. Optoelectron. China

109

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Optical fiber sensors based on stimulated Brillouin scattering have now clearly demonstrated their excellent capability for long-range distributed strain and temperature measurements. The fiber is used as sensing element, and a value for temperature and/or strain can be obtained from any point along the fiber. After explaining the principle and presenting the standard implementation, the latest developments in this class of sensors will be introduced, such as the possibility to measure with a spatial resolution of 10 cm and below while preserving the full accuracy on the determination of temperature and strain.

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Section: Brillouin Echo Distributed Sensing (Beds)mentioning

confidence: 99%

Brillouin distributed time-domain sensing in optical fibers: state of the art and perspectives

Thévenaz

2010

Front. Optoelectron. China

109

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“…These factors are generally interrelated and improvement in one factor may results in degradation in one or more of the others. Darkpulse Brillouin optical time domain analysis (BOTDA) technique [34] provides improved resolution, accuracy and acquisition time over conventional BOTDA systems without the severe limitations on sensing length often imposed by other high-resolution techniques.…”

Section: Fiber Sensorsmentioning

confidence: 99%

Nonlinear Scattering Effects in Optical Fibers

Singh¹,

Gangwar²,

Singh³

2007

PIER

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“…In addition, such higher-power pump light is reported to provide narrower Brillouin linewidth, resulting in a high precision of the measurement [11]. Therefore, Brillouin sensors have been mainly implemented using light sources at the telecommunication wavelength, where relatively inexpensive erbium-doped fiber amplifiers (EDFAs) have been used, though some exceptions have been reported [12,13].…”

Section: Introductionmentioning

confidence: 99%

Observation of Brillouin gain spectrum in optical fibers in telecommunication band: Effect of pump wavelength

Lee

Hayashi

Mizuno

2016

IEICE Electron. Express

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Abstract:We study the optical wavelength dependence of the Brillouin gain spectrum for a silica single-mode fiber in the range from 1511 to 1555 nm using a measurement setup containing an erbium-doped fiber amplifier (EDFA) in the Brillouin pump path. The Brillouin peak power and linewidth are clearly dependent on the pump wavelength, the trends of which correspond well with the wavelength dependence of the EDFA gain. This result suggests that we need to consider the unique wavelength dependence of the EDFA gain to practically obtain a higher Brillouin peak power and narrower linewidth at the telecommunication wavelength.

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Dark-Pulse Brillouin Optical Time-Domain Sensor With 20-mm Spatial Resolution

Cited by 134 publications

References 12 publications

Brillouin distributed time-domain sensing in optical fibers: state of the art and perspectives

Brillouin distributed time-domain sensing in optical fibers: state of the art and perspectives

Nonlinear Scattering Effects in Optical Fibers

Observation of Brillouin gain spectrum in optical fibers in telecommunication band: Effect of pump wavelength

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