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A transfer matrix method based large-signal dynamic model for multielectrode DFB lasers

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2 Author(s)
Davis, M.G. ; Dept. of Electron. Eng., Univ. Coll. Dublin, Ireland ; O'Dowd, R.F.

A large-signal dynamic model capable of modeling the transient behavior of the output power and wavelength of multielectrode DFB lasers is described here. The key feature of the model is the use of a modified form of the transfer matrix method resulting in a time-dependent implementation of this technique. Other features are the inclusion of longitudinal spatial hole burning and nonlinear gain in the model. The versatility of the model is demonstrated in an analysis of the response of a two-electrode DFB laser under large-signal direct current modulation which illustrates the important role played by longitudinal spatial hole burning. The limited use of wavelength tunability in controlling chirp is also demonstrated. However, a scheme to improve the damping mechanism through nonuniform excitation called backbiasing is proposed. Finally, wavelength switching is demonstrated using the model

Published in:

Quantum Electronics, IEEE Journal of  (Volume:30 ,  Issue: 11 )

Date of Publication:

Nov 1994

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