Title :
Long-range distributed strain and temperature sensing with 40-cm spatial resolution based on DPP-BOTDA employing optical pre-amplification and Simplex coding
Author :
Taki, M. ; Soto, M.A. ; Bolognini, G. ; Pasquale, F. Di
Author_Institution :
Scuola Superiore Sant´´Anna, Pisa, Italy
Abstract :
Sub-meter resolution sensing has been achieved employing linear pre-amplification with Simplex-coded pulses employing DPP-BOTDA. Results demonstrate a spatial resolution of ~40 cm over 56km sensing fiber with 1.1°C-22με temperature-strain resolution.
Keywords :
fibre optic sensors; linear codes; optical fibre amplifiers; optical resolving power; strain sensors; temperature sensors; DPP-BOTDA; linear preamplification; long range distributed strain; optical coding; optical preamplification; simplex coded pulse; spatial resolution; submeter resolution sensing; temperature sensing fiber; temperature-strain resolution; Encoding; Optical fiber sensors; Probes; Scattering; Spatial resolution; Temperature measurement;
Conference_Titel :
Optical Fiber Communication Conference and Exposition (OFC/NFOEC), 2011 and the National Fiber Optic Engineers Conference
Conference_Location :
Los Angeles, CA
Print_ISBN :
978-1-4577-0213-6
