Title :
An active transversal filter MMIC for very high-speed lightwave systems
Author :
Jamani, Y. ; Freundorfer, A.P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´s Univ., Kingston, Ont., Canada
fDate :
6/1/1997 12:00:00 AM
Abstract :
An equalizer using cascode MESFET´s in a distributed structure has been designed for pulse-shaping data in high-speed lightwave systems. Pulse-shaping is accomplished by controlling the gain of each individual cascode stage separately in the distributed circuit. The circuit was fabricated in a microwave monolithic integrated circuit (MMIC) implementation using Nortel´s 0.8-μm GaAs MESFET technology. Frequency response measurements demonstrate that the bandwidth can be controlled up to 8 GHz. Eye pattern measurements demonstrate the ability to control the pulse shape at 5 Gb/s.
Keywords :
MESFET integrated circuits; MMIC; equalisers; frequency response; gallium arsenide; integrated optoelectronics; optical communication equipment; 0.8 mum; 5 Gbit/s; GaAs; GaAs MESFET technology; IOE; active transversal filter MMIC; cascode MESFET´s; distributed circuit; distributed structure; eye pattern measurements; frequency response measurements; high-speed lightwave systems; individual cascode stage; microwave monolithic integrated circuit; optical equalizer; pulse shape control; pulse-shaping data; very high-speed lightwave systems; Equalizers; Integrated circuit measurements; MESFETs; MMICs; Monolithic integrated circuits; Pulse circuits; Pulse measurements; Shape control; Shape measurement; Transversal filters;
Journal_Title :
Photonics Technology Letters, IEEE
