20 dB SNR enhancement in phase-sensitive OTDR using pulse stretching and recompression

Juan Pastor-Graells; Luis Romero Cortés; Hugo F. Martins; María R. Fernández-Ruiz; José Azaña; Sonia Martin-Lopez; Miguel Gonzalez-Herraez

doi:10.1117/12.2265605

23 April 2017 20 dB SNR enhancement in phase-sensitive OTDR using pulse stretching and recompression

Juan Pastor-Graells, Luis Romero Cortés, Hugo F. Martins, María R. Fernández-Ruiz, José Azaña, Sonia Martin-Lopez, Miguel Gonzalez-Herraez

Author Affiliations +

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103230R (2017) https://doi.org/10.1117/12.2265605
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

This work shows the possibility of using chirped pulse amplification concepts in order to increase the signal-to-noise ratio (SNR) of phase sensitive optical time domain reflectometry (ΦOTDR) sensors. This method allows to increase the SNR of a ΦOTDR sensor without sacrificing spatial resolution. Here, we report a ΦOTDR sensor with a spatial resolution of 3 mm (limited only by the available detection equipment) and an SNR increase of 20 dB over the traditional architecture. To our knowledge, this is the highest-resolution ΦOTDR sensor reported to date.

Citation Download Citation

Juan Pastor-Graells, Luis Romero Cortés, Hugo F. Martins, María R. Fernández-Ruiz, José Azaña, Sonia Martin-Lopez, and Miguel Gonzalez-Herraez "20 dB SNR enhancement in phase-sensitive OTDR using pulse stretching and recompression", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103230R (23 April 2017); https://doi.org/10.1117/12.2265605

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available