Title :
Simulation of dynamic performance of a waveguide multiquantum-well electroabsorption modulator
Author :
Fells, J.A.J. ; Tsang, H.K. ; White, I.H. ; Penty, R.V. ; Mason, P. ; Gibbon, M.A. ; Thompson, G.H.B.
Author_Institution :
Sch. of Phys., Bath Univ., UK
Abstract :
Describes the use of a computer model to simulate a multiquantum-well electroabsorption modulator under R.F. modulation. Particular emphasis is placed on the chirp performance of the device for applications in high bit-rate (10 Gbit/s), long haul (>100 km) communications in non-dispersion shifted fibre. The work has highlighted the importance of operating wavelength relative to the bandedge and has shown that a 3dB improvement in dispersion penalty is possible by operating closer to the bandedge. A novel device is proposed and simulated in which there are quantum wells of different dimensions such that the device simultaneously operates in two distinct regimes. This has enabled a trade off against the increased insertion loss close to the bandedge
Keywords :
digital simulation; electro-optical devices; electroabsorption; integrated optics; optical communication equipment; optical losses; optical waveguides; semiconductor quantum wells; 10 Gbit/s; 100 km; RF modulation; bandedge; chirp performance; computer model; dispersion penalty; dynamic performance; high bit rate long haul communications; insertion loss; nondispersion shifted fibre; operating wavelength; simulation; waveguide multiquantum-well electroabsorption modulator;
Conference_Titel :
Applications of Quantum Well Technologies, IEE Colloquium on
Conference_Location :
London
