Title :
Chaos in coupled semiconductor lasers with an electronic delayed feedback caused by injection locking
Author :
Fukushima, Takehiro ; Sakamoto, Toyokazu
Author_Institution :
Dept. of Commun. Eng., Okayama Prefectural Univ., Japan
fDate :
5/1/1998 12:00:00 AM
Abstract :
We proposed and demonstrated a novel hybrid chaotic system using injection locking in coupled laser diodes. This system consists of double laser diodes, a Fabry-Perot etalon, and an electronic delay feedback. The bifurcation diagram route to chaos and variation of the temporal waveform of the output light intensity were observed relative to the feedback gain. Some peculiar bifurcation properties, which were caused by a strong nonlinear effect due to injection locking, were observed. We also analyzed the experimental results using Van der Pole equations coupled with rate equations. The results of theoretical analysis showed good agreement with the experimental results
Keywords :
Fabry-Perot interferometers; bifurcation; laser feedback; laser mode locking; laser theory; optical chaos; semiconductor lasers; Fabry-Perot etalon; Van der Pole equations; bifurcation diagram route; coupled semiconductor laser chaos; double laser diodes; electronic delayed feedback; feedback gain; injection locking; laser feedback; laser theory; output light intensity; rate equations; strong nonlinear effect; temporal waveform; Bifurcation; Chaos; Delay; Diode lasers; Fabry-Perot; Injection-locked oscillators; Laser feedback; Nonlinear equations; Optical coupling; Semiconductor lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
