Title :
A CMOS laser driver with independently adjustable DC and modulation currents for data rates up to 2.5 Gb/s
Author :
Haralabidis, N. ; Halkias, G.
Author_Institution :
Inst. of Microelectron. NCSR Demokritos, Athens, Greece
Abstract :
A CMOS laser diode driver (LDD) has been designed and tested, which offers the capability of independent DC and modulation current adjustments. The DC component used to pre-bias the laser diode is adjustable at a range of 0-40 mA. The modulation current can also be adjusted within a range of 0-30 mA. According to experimental results it can efficiently accommodate data rates up to 2.5 Gb/s while maintaining the full range of DC pre-bias component. Special issues regarding performance degradation have been addressed during circuit design which led to at least 25% performance enhancement compared to a conventional solution. The circuit has been fabricated in AMS 0.8 μm CMOS process
Keywords :
CMOS analogue integrated circuits; circuit simulation; differential amplifiers; driver circuits; laser accessories; optical interconnections; 0 to 40 mA; 0.8 micron; 2.5 Gbit/s; AMS; CMOS; DC pre-bias component; adjustable DC current; adjustable modulation current; data rates; laser driver; modulation current; performance degradation; CMOS technology; Capacitance; Circuit simulation; Data communication; Diode lasers; High speed optical techniques; Integrated circuit interconnections; Optical interconnections; Tail; Voltage;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.857462
