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Numerical simulations of 1.5 μm actively mode-locked semiconductor lasers including dispersive elements and chirp

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2 Author(s)
A. J. Lowery ; Dept. of Electr. & Electron. Eng., Nottingham Univ., UK ; I. W. Marshall

A transmission-line laser model (TLLM) for mode-locked lasers is modified to include carrier-induced index variations which is the cause of laser chirp. Time-domain dynamic simulations show this to cause pulse narrowing, spectral shifting, and spectral broadening. The effects of AC drive, DC bias, unwanted reflections, and higher-harmonic RF drive are also investigated. The authors present results showing how chirp, drive conditions, facet reflectivity, and harmonic operation affect pulse shape, stability, and pulse spectra

Published in:

IEEE Journal of Quantum Electronics  (Volume:27 ,  Issue: 8 )