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Distinction between multimoded and singlemoded self-pulsations-in DFB lasers

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2 Author(s)
D. D. Marcenac ; Dept. of Eng., Cambridge Univ. ; J. E. Carroll

DFB lasers with split contacts are shown, by large signal dynamic modelling, to self-pulsate at gigabit frequencies. Two different self-pulsation schemes are discussed: where the laser switches between the higher and lower stop band modes, and where the laser pulsates around a single mode. The second scheme can yield self-pulsation frequencies beyond 20 GHz. Comparisons are made with experimental results

Published in:

Electronics Letters  (Volume:30 ,  Issue: 14 )