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Optical Heterodyne Generation of High-Dimensional and Broadband White Chaos

Wang, A.B. and Wang, B.J. and Li, L. and Wang, Y.C. and Shore, K.A. (2015) Optical Heterodyne Generation of High-Dimensional and Broadband White Chaos. IEEE Journal of Selected Topics in Quantum Electronics, 21 (6). Article Number: 1800710. DOI: 10.1109/JSTQE.2015.2427253

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Abstract

White chaos with a colorless spectral bandwidth of 14 GHz contained within a range of 3 dB is experimentally generated by optical heterodyning of two external-cavity laser diodes. Experimental and numerical results show that the signatures of laser relaxation oscillation and external-cavity resonance (i.e., time delay signature), which are intrinsic to the laser dynamics are totally eliminated in the heterodyne-generated chaos. Correlation dimensional analysis shows that the generated chaos has a high dimensionality, being greater than 10. In addition, the effects on the heterodyne spectral bandwidth of variations in the optical feedback strength and frequency detuning of the lasers are studied experimentally and theoretically. Opportunities are identified for the deployment of white chaos.

Item Type: Article
Subjects: Research Publications
Departments: College of Physical and Applied Sciences > School of Electronic Engineering
Date Deposited: 09 Sep 2015 02:19
Last Modified: 23 Sep 2015 02:47
ISSN: 1077-260X
URI: http://e.bangor.ac.uk/id/eprint/5314
Identification Number: DOI: 10.1109/JSTQE.2015.2427253
Publisher: IEEE publishing
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