Synchronization of optical chaos in vertical-cavity surface-emitting lasers via optimal PI controller

Authors:
Da-Long Cheng;Cheng-Fang Huang;Shun-Yuan Cheng;Jun-Juh Yan
Affiliations:
Department of Computer and Communication, Shu-Te University, Kaohsiung 82445, Taiwan, ROC;Department of Computer and Communication, Shu-Te University, Kaohsiung 82445, Taiwan, ROC;Department of Computer and Communication, Shu-Te University, Kaohsiung 82445, Taiwan, ROC;Department of Computer and Communication, Shu-Te University, Kaohsiung 82445, Taiwan, ROC
Venue:
Expert Systems with Applications: An International Journal
Year:
2009

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Abstract

This paper is concerned with the synchronization problem of optical chaos in vertical-cavity surface-emitting lasers (VCSELs). A proportional-integral (PI) controller is proposed to achieve the synchronization. An evolutionary programming (EP) algorithm is newly introduced for deriving optimal or near optimal PI control gains, such that a specified performance index between the master and slave VCSELs is minimized. A numerical result exemplifies the synchronization procedure.