You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.
14 October 2009Distributed strain and temperature sensing over 50 km of SMF with 1 m spatial resolution employing BOTDA and optical pulse coding
In this paper we demonstrate a long-range distributed strain and temperature optical fiber sensor using Brillouin optical
time-domain analysis in conjunction with optical pulse coding. Compared to standard BOTDA, pulse coding provides
higher signal-to-noise ratio at the same pump peak power, overcoming the limitations induced by pump depletion and
modulation instability, and allowing to achieve a record of 1 meter spatial resolution over 50 km of standard single mode
fiber with temperature and strain resolution of 2.2 °C and 44 με respectively.
The alert did not successfully save. Please try again later.
Marcelo A. Soto, Gabriele Bolognini, Fabrizio Di Pasquale, Luc Thévenaz, "Distributed strain and temperature sensing over 50 km of SMF with 1 m spatial resolution employing BOTDA and optical pulse coding," Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 750383 (14 October 2009); https://doi.org/10.1117/12.848791