Abstract
光纖傳輸網路由於其極高的資料傳輸速度，在未來寬頻通訊系統中具有極大的應用領域．在先前的技術中，傳輸速度高於500MHBb/s的傳收電路都是由GaAs製程，Bipolar製程或BiCMOS製程製造．這類製程成本高，且無法與後續數位電路整合一起．本論文藉由數位0.6um CMOS製程製造光纖傳輸網路中所用之雷射二極體驅動電路(LDD)以及一後級放大器電路(post-amplifier)．雷射二極體驅動電路之最大調變電流可到達30mA，且具有一溫度補償電路調整預偏電流與調變電流．後級放大器具有32dB輸入動態範圍並提供ECL電壓位準輸出．所有電路均操作於+5V電源．此外，利用0.35um CMOS 製程，我們同時發展出接收端前級放大器之設計．此前級放大器具有1GHz頻寬以及2kOhms的放大倍率．這些CMOS電路具有與後續數位電路整合於單一晶片之優點．Low-cost high-speed optical fiber transmitters and receivers aredescribed.In this work, a laser diode driver and a post-amplifier, operating at 1.25G/s, are implemented in a logic0.6um CMOS technology. The laser diodedriver has maximum pre-bias and modulation currents up to 30mA and a temperaturecompensation circuit of +2.36% pre degree centigrade. The post-amplifier exhibits an input dynamic range of 32dB and providesan ECL-compatible output voltage on 50Ohms load. A programmableloss-of-signalfunction with about 2dB hysteresis is incorporatedin the post-amplifier.All the above integreted circuits operatewith a single 5V power supply.We also demonstrate a preamplifiercircuit with 2K-Ohms transimpedancedesigned by the 0.35um CMOStechnology. These CMOS circuits can be integratedwith thedigital signal processor circuits in a single chip.