Current crowding in oxide-confined intracavity-contacted VCSELs

R.C. Strijbos, L.M. Augustin, T.G. Roer, van de

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An important problem for intracavity-contacted oxide-confined Vertical-Cavity Surface-Emitting Lasers (ICOC-VCSELs) is current crowding at the inner edges of the oxide current constrictions, which introduces extra losses and leads to excitation of unwanted higher-order transverse modes. We have proposed novel ’asymmetric’ ICOC-VCSELs, where the contact metallisations are restricted to opposite mesa sides, for more homogeneous current injection and polarisation control. Here, results of simple 2D drift-diffusion calculations are presented for symmetric and asymmetric ICOC-VCSELs. Current crowding in our ’asymmetric’ devices is reduced, but depends on the design of the layer structure.
Originele taal-2Engels
TitelProceedings of the 5th annual symposium of the IEEE/LEOS Benelux Chapter : October 30, 2000, Delft , the Netherlands
RedacteurenX.J.M. Leijtens, J.H. Besten, den
Plaats van productieDelft
UitgeverijTechnische Universiteit Delft
ISBN van geprinte versie90-9014260.6
StatusGepubliceerd - 2000
Evenement5th Annual Symposium of the IEEE/LEOS Benelux Chapter - Delft, Nederland
Duur: 30 okt. 200030 okt. 2000


Congres5th Annual Symposium of the IEEE/LEOS Benelux Chapter


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