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Modal gain in coupled-stripe lasers

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2 Author(s)
Chinn, S.R. ; General Electric Electronics Lab., Syracuse, NY, USA ; Spiers, R.

Using an effective index model, we calculate the eigenvalue equation for a large array of evanescent-wave-coupled multistripe lasers. The special cases of symmetric and antisymmetric modes for both the index- and gain-guided lasers are treated in detail. The main findings are 1) weak index-guided coupling, with small differences in optical confinement factors, and 2) stronger gain-guided coupling, with parameter-dependent selection of the mode symmetry having higher gain.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:20 ,  Issue: 4 )