Comparison of single- and dual-mode lasing states of a hybrid-cavity laser under optical feedback.
Opt Lett
; 46(9): 2115-2118, 2021 May 01.
Article
em En
| MEDLINE
| ID: mdl-33929431
ABSTRACT
In this Letter, we design and realize a hybrid-cavity laser with single- or dual-mode lasing states and study the nonlinear states of the laser under external optical feedback (EOF). The laser at a dual-mode state easily and directly enters the chaotic state without periodic oscillation states and display chaos for a much wider range of the EOF magnitude than the laser at a single-mode state. A flat chaotic signal is obtained for the laser at a dual-mode lasing state under a weak EOF benefitting from the low-frequency energy enhancement caused by mode competition between the dual modes.
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MEDLINE
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En
Ano de publicação:
2021
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Article