Title :
Time-delay extraction in chaotic laser diode using RF spectrum analyser
Author :
Wang, Yen-Chin ; Liang, J.-S. ; Wang, A.-B. ; Zhang, M.-J.
Author_Institution :
Dept. of Phys. & Optoelectron., Taiyuan Univ. of Technol., Taiyuan, China
Abstract :
It is experimentally demonstrated that the time delays of a chaotic laser diode with optical feedback can be extracted by means of a RF spectrum analyser. Through locally enlarging the power spectral density of chaotic light and observing its fine structure, the time delays can be easily identified, whether single or dual optical feedback.
Keywords :
chaotic communication; delays; optical feedback; semiconductor lasers; spectral analysers; RF spectrum analyser; chaotic laser diode; chaotic light; optical feedback; time-delay extraction;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.2112
