Summary

Proceedings of the 2012 International Symposium on Nonlinear Theory and its Applications

2012

Session Number:B2L-D

Session:

Number:399

Spontaneous exchange of leader-laggard relationship in mutually-coupled semiconductor lasers

Takuya Hida,  Kazutaka Kanno,  Atsushi Uchida,  

pp.399-402

Publication Date:

Online ISSN:2188-5079

DOI:10.15248/proc.1.399

PDF download (648KB)

We investigate instantaneous behaviors of the leader-laggard relationship of temporal waveforms in mutually-coupled two semiconductor lasers in the open-loop configuration. The temporal waveform of one laser output is delayed with respect to that of the other laser output by the propagation delay time, and the leader-laggard relationship can be determined by measuring cross correlation between the two temporal waveforms with time delay. The leader can be identified on average when the optical carrier frequency of the leader laser is higher than the other laser. However, when short-term cross-correlation is measured and the local structure of the leader-laggard relationship is investigated, spontaneous exchange between the leader and laggard lasers can be observed in time, even for fixed initial optical frequency detuning.

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