Title :
Gain-switched dynamics of tapered waveguide bow-tie lasers: experiment and theory
Author :
Williams, K.A. ; White, I.H. ; Penty, R.V. ; Laughton, F.R.
Author_Institution :
Centre for Commun. Res., Bristol Univ., UK
Abstract :
A large signal dynamic beam propagation model has been developed to describe the gain-switched operation of GaAs-AlGaAs double tapered waveguide bow-tie laser diodes. Good agreement is demonstrated between experiment and theory, highlighting the role of nonuniform carrier depletion and transverse mode spatial hole-burning in limiting peak pulse powers on picosecond time scales.
Keywords :
III-V semiconductors; aluminium compounds; dynamics; gallium arsenide; high-speed optical techniques; laser modes; laser theory; optical hole burning; semiconductor device models; semiconductor lasers; waveguide lasers; GaAs-AlGaAs; GaAs-AlGaAs double tapered waveguide bow-tie laser diodes; gain-switched dynamics; large signal dynamic beam propagation model; nonuniform carrier depletion; peak pulse powers; picosecond time scales; tapered waveguide bow-tie lasers; transverse mode spatial hole-burning; Laser modes; Laser theory; Optical pulse generation; Optical pulses; Optical waveguides; Pulse amplifiers; Semiconductor lasers; Semiconductor waveguides; Waveguide lasers; Waveguide theory;
Journal_Title :
Photonics Technology Letters, IEEE
