Title :
An integrated direct-coupled 10-Gb/s driver for common-cathode VCSELs
Author :
Ciubotaru, Alexandru A. ; García, Javier Sánchez
Author_Institution :
Melbourne Design Center, FL, USA
fDate :
3/1/2004 12:00:00 AM
Abstract :
An all- npn integrated driver for directly modulating common-cathode vertical-cavity surface-emitting lasers (VCSELs) at high speeds (such as 10 Gb/s) is proposed and experimentally demonstrated. Special biasing techniques allow the output transistors to operate with small collector-emitter voltages while maintaining their fast current-switching capabilities. A current-splitting technique in the output stage minimizes the transients through the bias source and reduces jitter and overshoot.
Keywords :
driver circuits; optical communication equipment; surface emitting lasers; 10 Gbit/s; bias source; collector-emitter voltages; common-cathode VCSELs; current-splitting; current-switching; integrated direct-coupled driver; integrated driver; jitter; output transistors; overshoot; transients; vertical-cavity surface-emitting lasers; Cathodes; Diode lasers; Driver circuits; Fiber lasers; Frequency response; Jitter; Optical surface waves; Surface emitting lasers; Vertical cavity surface emitting lasers; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2003.822764
