Title :
Simple technique for bandwidth enhancement of multimode fibre links using controlled spatial emission from vertical cavity surface emitting lasers
Author :
Sargent, L.J. ; Webster, M. ; White, I.H. ; Heard, P.J. ; Penty, R.V. ; Tan, M.R.T. ; Cunningham, D.G.
Author_Institution :
Centre for Commun. Res., Bristol Univ., UK
fDate :
10/15/1998 12:00:00 AM
Abstract :
High performance etched vertical cavity surface emitting laser sources are reported that avoid bandwidth collapse in multimode fibre by using a simple coupling technique to control the launch. These sources allow optimum link bandwidths of 2 Gbit/s over 500 m of fibre when aligned for maximum launch power, and maintain over-filled launch bandwidths for alignment tolerances of ±7 μm
Keywords :
optical fibre communication; surface emitting lasers; 2 Gbit/s; 500 m; alignment tolerance; coupling technique; multimode fibre link; over-filled launch bandwidth; spatial emission; vertical cavity surface emitting laser;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981417
