High speed CMOS laser drivers

The design of a 1.2 Gbit/sec CMOS laser driver with a novel temperature controlled feedback loop is presented. It was designed to be used for digital fiber applications, e.g. fiber-to-the-curb telecommunications or for datacom. The laser-driver operates at a maximum speed of 1.2 Gbit/sec between the temperature ranges of -40 C to 85 C using low-cost CMOS technology. Simulation results at these speeds, and experimental results at a lower speed of 200Mbit/sec, are presented.