Title :
Frequency-domain analysis of dynamically applied strain using sweep-free Brillouin time-domain analyzer
Author :
Voskoboinik, Asher ; Hao Huang ; Peled, Yair ; Willner, Alan E. ; Tur, Moshe
Author_Institution :
Dept. of Electr. Eng.-Syst., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
Fast reconstruction of the whole Brillouin gain spectrum is experimentally demonstrated, using sweep-free Brillouin optical time-domain analysis (SF-BOTDA). Strain variations with frequencies up to 400Hz are spectrally analyzed, achieving strain sensitivity of 1microstrain per root Hz at a sampling rate of 5.5KHz and a spatial resolution of 4m.
Keywords :
fibre optic sensors; frequency-domain analysis; optical fibre testing; stimulated Brillouin scattering; strain measurement; strain sensors; time-domain analysis; Brillouin gain spectrum; SF-BOTDA; dynamically applied strain; frequency 5.5 kHz; frequency-domain analysis; strain sensitivity; sweep-free Brillouin time-domain analyzer; Optical fiber amplifiers; Optical fiber sensors; Probes; Scattering;
Conference_Titel :
Optical Communications (ECOC), 2012 38th European Conference and Exhibition on
Conference_Location :
Amsterdam
