Title :
Numerical simulations of 1.5 μm actively mode-locked semiconductor lasers including dispersive elements and chirp
Author :
Lowery, Arthur J. ; Marshall, Ian W.
Author_Institution :
Dept. of Electr. & Electron. Eng., Nottingham Univ., UK
fDate :
8/1/1991 12:00:00 AM
Abstract :
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
Keywords :
laser mode locking; laser theory; reflectivity; semiconductor junction lasers; spectral line breadth; spectral line shift; 1.5 micron; AC drive; DC bias; actively mode-locked semiconductor lasers; carrier-induced index variations; dispersive elements; facet reflectivity; harmonic operation; higher-harmonic RF drive; laser chirp; optical dispersion; pulse narrowing; pulse shape; pulse spectra; pulse stability; spectral broadening; spectral shifting; transmission-line laser model; unwanted reflections; Chirp; Laser mode locking; Numerical simulation; Optical reflection; Pulse shaping methods; Radio frequency; Reflectivity; Shape; Time domain analysis; Transmission lines;
Journal_Title :
Quantum Electronics, IEEE Journal of
