Recent developments in high-speed semiconductor lasers with bandwidths approaching 20 GHz (see, for example, Ref. 1) offer the possibility of digital transmission at data rates in the 10-20Gbit/s range. The modulation characteristics of these high-speed lasers are usually evaluated by small-signal measurements. However, the switching behavior under large-signal conditions determines the ultimate limits on high-speed digital modulation.
© 1986 Optical Society of AmericaPDF Article