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Title

Interplay of Current Noise and Delayed Optical Feedback on the Dynamics of Semiconductor Lasers

AuthorsSoriano, Miguel C. ; Berkvens, Thomas; Van der Sande, Guy ; Verschaffelt, Guy; Danckaert, Jan; Fischer, Ingo
Issue Date2011
PublisherInstitute of Electrical and Electronics Engineers
CitationIEEE Journal of Quantum Electronics 47: 368-374 (2011)
AbstractWe study the influence of low-frequency current noise on a single-mode semiconductor laser subject to external optical feedback. We experimentally show that the addition of current noise modifies the power spectrum of the chaotic intensity fluctuations of the laser subject to feedback. From the power spectrum measurements, we can deduce interactions among the feedback-induced dynamics and the current noise. Numerical modeling based on Lang-Kobayashi rate equations provides additional insight, as the phase of the electric field can be analyzed. We find that the noise affects the coherence of the chaotic oscillations, thereby being able to alter their characteristics significantly as long as this coherence exists.
Publisher version (URL)http://dx.doi.org/10.1109/JQE.2010.2090511
URIhttp://hdl.handle.net/10261/46060
DOI10.1109/JQE.2010.2090511
ISSN0018-9197
Appears in Collections:(IFISC) Artículos
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