Abstract
Providing high speed, wide bandwidth, and low loss communication environment, optical fiber communication plays an important role of high-speed data transmission in recent years. To implement optical communication system, the laser diode driver is required to convert electrical signal to optical signal, and the quality of the system depends on the performance of the driver.In our thesis, a 2.5Gbps laser diode driver with Auto Power Control/Auto-Biasing circuit is proposed and designed by a 0.35 um 1P4M process. The Auto-Biasing circuit proposed can provide more accurate bias current to reduce 5% extra power consumption and to improve 8.9% extinction ratio.