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Local normal mode analysis index-guided AlGaAs lasers with mode filter

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5 Author(s)
P. Vankwikelberge ; Rijksuniversiteit Gent-IMEC, Gent, Belgium ; J. -P. Van De Capelle ; R. Baets ; B. Verbeek
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The mode filtering properties of index-guided lasers containing a lateral mode filter section are investigated using the beam propagation method combined with a lateral local normal mode decomposition. These structures are shown to have higher kink currents than filterless devices. Furthermore, the choice of the filter length is observed to be a tradeoff between low thresholds (short filters) and suitable far fields at the filter side (long filters).

Published in:

IEEE Journal of Quantum Electronics  (Volume:23 ,  Issue: 6 )