Title :
Line-narrowed operation of multiquantum well lasers
Author :
Williams, K.A. ; White, I.H. ; Wonfor, A. ; Griffin, P.S. ; Whiteaway, J.E.A. ; Thompson, G.H.B. ; Garrett, B.
Author_Institution :
Sch. of Phys., Bath Univ., UK
Abstract :
The large signal high speed operation of multiquantum well (MQW) lasers is investigated to allow insight into observed gain suppression and spectral broadening. Carrier transport is identified as being a particularly important damping mechanism. This has enabled the modelling of the substantially reduced linewidths, experimentally measured as being as low as 0.08 nm (-20dB), for 2Gbit/s digitally modulated multicontact MQW structures with nonuniform current injection
Keywords :
distributed feedback lasers; laser theory; semiconductor lasers; spectral line breadth; 2 Gbit/s; DFB lasers; InGaAsP-InP; carrier transport; damping mechanism; digitally modulated multicontact MQW structures; gain suppression; large signal high speed operation; line narrowed operation; lumped parameter monomode rate equation model; multiquantum well lasers; nonuniform current injection; spectral broadening;
Conference_Titel :
Applications of Quantum Well Technologies, IEE Colloquium on
Conference_Location :
London
