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Dropout dynamics in pulsed quantum dot lasers due to mode jumping

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Sibbett_2015_APLP_Dropout.pdf (1.619Mb)
Date
29/06/2015
Author
Sokolovskii, G. S.
Viktorov, E. A.
Abusaa, M.
Danckaert, J.
Dudelev, V. V.
Kolykhalova, E. D.
Soboleva, K. K.
Deryagin, A. G.
Novikov, I. I.
Maximov, M. V.
Zhukov, A. E.
Ustinov, V. M.
Kuchinskii, V. I.
Sibbett, W.
Rafailov, E. U.
Erneux, T.
Keywords
linewidth enhancement factor (LEF)
Semiconductor-lasers
Hair removal
Diode-laser
Power
QC Physics
NDAS
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Abstract
We examine the response of a pulse pumped quantum dot laser both experimentally and numerically. As the maximum of the pump pulse comes closer to the excited-state threshold, the output pulse shape becomes unstable and leads to dropouts. We conjecture that these instabilities result from an increase of the linewidth enhancement factor a as the pump parameter comes close to the excitated state threshold. In order to analyze the dynamical mechanism of the dropout, we consider two cases for which the laser exhibits either a jump to a different single mode or a jump to fast intensity oscillations. The origin of these two instabilities is clarified by a combined analytical and numerical bifurcation diagram of the steady state intensity modes.
Citation
Sokolovskii , G S , Viktorov , E A , Abusaa , M , Danckaert , J , Dudelev , V V , Kolykhalova , E D , Soboleva , K K , Deryagin , A G , Novikov , I I , Maximov , M V , Zhukov , A E , Ustinov , V M , Kuchinskii , V I , Sibbett , W , Rafailov , E U & Erneux , T 2015 , ' Dropout dynamics in pulsed quantum dot lasers due to mode jumping ' , Applied Physics Letters , vol. 106 , no. 26 , 261103 . https://doi.org/10.1063/1.4923244
Publication
Applied Physics Letters
Status
Peer reviewed
DOI
https://doi.org/10.1063/1.4923244
ISSN
0003-6951
Type
Journal article
Rights
© 2015 AIP Publishing LLC. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work which was originally published at http://dx.doi.org/10.1063/1.4923244.
Description
This work was partially funded by the Erasmus Mundus External Cooperation Window (EMECW) programme under Project No. 141085-EM-1-2008-BE-ERAMUNDUS-ECWL02, the Research Foundation Flanders (FWO), the Fonds National de la Recherche Scientifique, and the Belgian Science Policy Office under Grant No. IAP-7/35 “photonics@be.” Support by the Russian Ministry of Science and Education (Grant ID: RFMEFI60714X0101) is acknowledged. Date of Acceptance: 17/06/2015
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/7187

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