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Generation of optical pulses in VCSELs below the static threshold using asymmetric current modulation

Autor
Zamora, J.; Masoller, C.
Tipus d'activitat
Article en revista
Revista
Optics express
Data de publicació
2008-10
Volum
16
Número
22
Pàgina inicial
17848
Pàgina final
17853
DOI
https://doi.org/10.1364/OE.16.017848 Obrir en finestra nova
URL
https://www.osapublishing.org/oe/abstract.cfm?uri=oe-16-22-17848 Obrir en finestra nova
Resum
We present a novel method for the generation of sub-nanosecond optical pulses in directly modulated vertical-cavity surface-emitting lasers (VCSELs) that operate, on average, below the cw threshold. Using the spin-flip model we demonstrate that irregular optical pulses in two orthogonal linear polarizations can be generated via asymmetric triangular modulation of period of a few nanoseconds, with a slow rising ramp followed by a fast decreasing one. For an optimal modulation asymmetry the effect...
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DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers

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