Reduced effective linewidth enhancement factor α eff of complex-coupled DFB lasers with absorptive gratings
- 22 July 1993
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 29 (15) , 1367-1369
- https://doi.org/10.1049/el:19930916
Abstract
An extended model for the calculation of αeff is presented including for the first time the carrier dynamics in the absorptive grating. It is shown that for comparable carrier lifetime in the absorptive and active regions a significant reduction of αeff may be achieved by the antiphase configuration of the complex coupling coefficient.Keywords
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