Title :
Chaos synchronisation of self-pulsating laser diodes
Author :
Lee, Min Won ; Pierce, Iestyn
Author_Institution :
Wales Univ., Bangor
Abstract :
In this work, synchronisation of chaotic pulse-sequences has been achieved using self-pulsating laser diodes. The chaotic pulse-sequences are generated in two different ways. First, in the near-CW emission range the master self-pulsating laser is subject to optical feedback via an external-cavity and it emits chaotic pulse-sequences. The external-cavity round-trip time is 4 ns. The second method has the laser diode operating in the self-pulsation range and generates chaotic pulse-sequences via external modulation. The modulation frequency is 1.2 GHz and the modulation power is 7.4 dBm. The synchronisation of the chaotic pulse-sequences is examined in both cases. Such synchronisation may provide a framework for chaotic communications and chaotic optical storage, and could lead to low cost and compact systems.
Keywords :
laser beams; laser cavity resonators; laser feedback; optical chaos; optical modulation; semiconductor lasers; synchronisation; chaos synchronisation; chaotic communication; chaotic optical storage; chaotic pulse-sequences; frequency 1.2 GHz; near-CW emission; optical feedback; self-pulsating laser diodes; time 4 ns; Chaos; Chaotic communication; Diode lasers; Frequency modulation; Frequency synchronization; Laser feedback; Optical feedback; Optical pulse generation; Optical pulses; Pulse modulation;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4385975
