Title :
Optimization of differential lock-in detection for five-fold enhancement in the spatial resolution of a BOCDA system
Author :
Ji Ho Jeong ; Kwanil Lee ; Kwang Yong Song ; Je-Myung Jeong ; Sang Bae Lee
Author_Institution :
Center for Opto-Electron. Convergence Syst., Korea Inst. of Sci. & Technol. (KIST), Seoul, South Korea
Abstract :
We propose and experimentally demonstrate the enhancement in the spatial resolution and the dynamic range of Brillouin optical correlation domain analysis by optimized differential lock-in detection. The spatial resolution is improved by more than five times compared to that of ordinary BOCDA with large extension of the dynamic range.
Keywords :
Brillouin spectra; optical correlation; optimisation; signal resolution; BOCDA system; Brillouin optical correlation domain analysis; differential lock-in detection; five-fold enhancement; optimization; spatial resolution; Frequency measurement; Frequency modulation; Noise; Phase frequency detector; Phase modulation; Scattering; Spatial resolution;
Conference_Titel :
Optical Communications (ECOC), 2012 38th European Conference and Exhibition on
Conference_Location :
Amsterdam
