M. Wang (US) University of Pittsburgh

University of Pittsburgh

Author Of 3 Presentations

 Conference Calendar
(PSSI) Photodetectors, Sensors, Systems and Imaging

MC3.4 - BIG DATA ANALYTICS ON FIBER-OPTICAL DISTRIBUTED ACOUSTIC SENSING WITH RAYLEIGH ENHANCEMENTS

Presentation Type
Contributed Submission
Authors
Date
09/30/2019
Time
01:30 PM - 03:00 PM
Room
El Mirador C East
Duration
15 Minutes
Lecture Time
02:30 PM - 02:45 PM

Abstract

Abstract

This paper presents a technique to use deep neural network on data analysis of distributed acoustic sensing (DAS) system built by phase-sensitive optical time-domain reflectometry (Φ-OTDR) with Rayleigh enhancement.

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(OFT) Optical Fiber Technology

MF3.3 - INTRINSIC FABRY-PEROT INTERFEROMETER FOR VIBRATION MEASUREMENT BY ENHANCED RAYLEIGH BACKSCATTERING DOTS FABRICATED BY FEMTOSECOND LASER INSCRIPTION

Presentation Type
Contributed Submission
Authors
Date
09/30/2019
Time
01:30 PM - 02:45 PM
Room
La Vista C
Lecture Time
01:30 PM - 01:30 PM

Abstract

Abstract

A new vibration measurement scheme is developed with an intrinsic Fabry-Perot interferometer (IFPI) built by two enhanced Rayleigh backscattering dots fabricated by femtosecond laser inscription. The cavity length of IFPI is absolutely and real-timely demodulated by fast white light interferometer demodulation.

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(OFT) Optical Fiber Technology

WP7 - DISTRIBUTED HIGH-TEMPERATURE SENSING WITH RAYLEIGH SCATTERING BASED IN-LINE FABRY-PEROT INTERFEROMETERS

Presentation Type
Contributed Submission
Authors
Date
10/02/2019
Time
06:00 PM - 08:00 PM
Room
El Mirador B/C
Lecture Time
06:00 PM - 06:00 PM

Abstract

Abstract

A cascaded string of six intrinsic Fabry-Perot Interferometer sensors was fabricated inside a silica fiber using ultrafast laser direct writing, then interrogated by fast white-light interferometer demodulation. Temperature sensitivity between 4.4-13.4nm/0C for up to 8000C at a spatial resolution of 1-cm was acquired.

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Presenter Of 1 Presentation

 Conference Calendar
(OFT) Optical Fiber Technology

WP7 - DISTRIBUTED HIGH-TEMPERATURE SENSING WITH RAYLEIGH SCATTERING BASED IN-LINE FABRY-PEROT INTERFEROMETERS

Presentation Type
Contributed Submission
Authors
Date
10/02/2019
Time
06:00 PM - 08:00 PM
Room
El Mirador B/C
Lecture Time
06:00 PM - 06:00 PM

Abstract

Abstract

A cascaded string of six intrinsic Fabry-Perot Interferometer sensors was fabricated inside a silica fiber using ultrafast laser direct writing, then interrogated by fast white-light interferometer demodulation. Temperature sensitivity between 4.4-13.4nm/0C for up to 8000C at a spatial resolution of 1-cm was acquired.

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