Title :
32 Gbit/s multimode fibre transmission using high-speed, low current density 850 nm VCSEL
Author :
Westbergh, P. ; Gustavsson, J.S. ; Haglund, A. ; Larsson, A. ; Hopfer, F. ; Fiol, Gerrit ; Bimberg, Dieter ; Joel, A.
Author_Institution :
Dept. of Microelectron. & Nanosci., Chalmers Univ. of Technol., Goteborg
Abstract :
Error free transmission over multimode fibre at data rates up to 3 2 Gbit/s at 25degC and 25 Gbit/s at 85degC using an oxide confined 850 nm VCSEL biased at a current density of 11-14kA/cm2 is demonstrated. The VCSEL is optimised for high-speed by reducing capacitance and self-heating and by using strained InGaAs quantum wells for high differential gain.
Keywords :
III-V semiconductors; current density; gallium arsenide; high-speed optical techniques; indium compounds; laser cavity resonators; optical fibre communication; optical transmitters; quantum well lasers; surface emitting lasers; InGaAs; VCSEL; bit rate 25 Gbit/s; bit rate 32 Gbit/s; capacitance; current density; high-speed technique; multimode fibre transmission system; quantum well; temperature 25 degC; temperature 85 degC; vertical cavity surface emitting laser; wavelength 850 nm;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.0201
