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19 May 2008 Experimental study of transverse mode dynamics in vertical-cavity surface-emitting lasers under current modulation
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Abstract
In this work we report on an experimental investigation of the nonlinear dynamics of a 850 nm multitransverse mode vertical-cavity surface-emitting laser (VCSEL) when subject to high-frequency current modulation. Different frequencies and modulation amplitudes are applied to the VCSEL. Regular periodic dynamics - with periods equal to the modulation period or twice the modulation period - and irregular pulsating dynamics are obtained. Different dynamical behaviors are illustrated by using power time traces, radio-frequency spectra and bifurcation diagrams. Our results show that irregular pulsating dynamics in multimode VCSELs subject to large-signal current modulatton can be obtained due to the competition between different transverse modes.
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A. Valle, M. Arizaleta, K. Panajotov, and M. Sciamanna "Experimental study of transverse mode dynamics in vertical-cavity surface-emitting lasers under current modulation", Proc. SPIE 6997, Semiconductor Lasers and Laser Dynamics III, 69970Z (19 May 2008); https://doi.org/10.1117/12.780405
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