High-order external cavity modes and restabilization of a laser diode subject to a phase-conjugate feedback.
Opt Lett
; 42(2): 306-309, 2017 Jan 15.
Article
em En
| MEDLINE
| ID: mdl-28081099
ABSTRACT
We experimentally report the sequence of bifurcations destabilizing and restabilizing a laser diode with phase-conjugate feedback when the feedback rate is increased. Specifically, we successively observe the initial steady state, undamped relaxation oscillations, quasi-periodicity, chaos, and oscillating solutions at harmonics up to 13 times the external cavity frequency but also the restabilization to a steady state. The experimental results are qualitatively well reproduced by a model that accounts for the time the light takes to penetrate the phase-conjugate mirror. The theory points out that the system restabilizes through a Hopf bifurcation whose frequency is a harmonic of the external cavity frequency.
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MEDLINE
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En
Ano de publicação:
2017
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Article