Transverse mode dynamics in vertical cavity surface emitting lasers excited by fast electrical pulses
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We report measurements of the transient multimode dynamics of vertical cavity surface emittin glasers excited by short (100–200 ps rise times, 1 ns duration) electrical pulses. Fast changes on the spatial distribution of the output power and strong mode competition are observed. Numerical simulations show that the observed dynamics are due to the partial overlap of the different transverse modes through spatial hole burning.