Chaotic spiking and incomplete homoclinic scenarios in semiconductor lasers with optoelectronic feedback

Details Chaotic spiking and incomplete homoclinic scenarios in semiconductor lasers with optoelectronic feedback Chaotic spiking and incomplete homoclinic scenarios in semiconductor lasers with optoelectronic feedback

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009njph...11g3022a&link_type=abstract

New Journal of Physics, Volume 11, Issue 7, pp. 073022 (2009).

Physics

6

Scientific paper

We demonstrate experimentally and theoretically the existence of slow chaotic spiking sequences in the dynamics of a semiconductor laser with ac-coupled optoelectronic feedback. The timescale of these dynamics is fully determined by the high-pass filter in the feedback loop and their erratic, though deterministic, nature is evidenced by means of the interspike interval (ISI) probability distribution. We eventually show that this regime is the result of an incomplete homoclinic scenario to a saddle-focus, where an exact homoclinic connection does not occur.

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