Title :
A compact, low-power 40 Gbit/s differential laser driver in sige BiCMOS technology
Author :
Knochenhauer, Christian ; Hauptmann, Stefan ; Scheytt, Christoph ; Ellinger, Frank
Author_Institution :
Dept. of Circuit Design & Network Theor., Dresden Univ. of Technol., Dresden, Germany
Abstract :
A differential laser driver for 40 Gbit/s optical communications delivering a 10 mA current swing to a laser modeled as a 50 Omega resistance in parallel to a 100 fF capacitance is presented. The circuit employs multiple frequency compensation techniques to achieve very high speed without space-consuming inductors. The driver was implemented in a 180 GHz-fT,max SiGe BiCMOS technology. Measurements showed 15 dB gain with 26 GHz bandwidth and open eyes up to 50 Gbit/s. The driver´s power consumption was only 80 mW making it the fastest and most power efficient of all inductorfree 40 Gbit/s SiGe laser drivers published to date.
Keywords :
BiCMOS integrated circuits; driver circuits; optical communication equipment; SiGe BiCMOS technology; bit rate 40 Gbit/s; capacitance 100 fF; compact differential laser driver; current 10 mA; low-power differential laser driver; multiple frequency compensation techniques; optical communications; power 80 mW; power consumption; resistance 50 ohm; BiCMOS integrated circuits; Capacitance; Driver circuits; Frequency; Germanium silicon alloys; Laser modes; Optical fiber communication; Silicon germanium; Space technology; VHF circuits;
Conference_Titel :
Microwave Integrated Circuits Conference, 2009. EuMIC 2009. European
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4749-7
