Title :
A new approach to the design of LED based Gb/s digital fiber optic link
Author :
Lin, J.Y. ; Daryoush, A.S. ; Gershman, V. ; Rosen, W.
Author_Institution :
Center for Microwave/Lightwave Eng., Drexel Univ., Philadelphia, PA, USA
Abstract :
A local area fiber optic network operating at rates above 1.25 Gb/s using LED as the optical transmitter and a novel receiver/clock recovery was developed. A LED driver circuit has been designed to compensate for the bandwidth roll-off of the LED above 500 MHz by means of an active current shaping network. Since the conventional approaches to the receiver/clock recovery circuit consumes power in range of watts, a low power consuming design method is also presented, which extracts the clock signal from ECL compatible data stream above Gb/s. Its performance is evaluated through a 1.25 Gb/s LED-based fiber optic transmission experiment.<>
Keywords :
digital communication systems; driver circuits; light emitting diodes; local area networks; optical communication equipment; optical links; phase-locked loops; transmitters; 1.25 Gbit/s; ECL compatible data stream; LED based Gb/s optical link; LED driver circuit; active current shaping network; bandwidth rolloff compensation; digital fiber optic link; local area fiber optic network; low power consuming design method; optical fibre link; optical transmitter; receiver/clock recovery; Bandwidth; Clocks; Design methodology; Driver circuits; Light emitting diodes; Optical design; Optical fiber networks; Optical fibers; Optical receivers; Optical transmitters;
Conference_Titel :
Microwave Symposium Digest, 1994., IEEE MTT-S International
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-1778-5
DOI :
10.1109/MWSYM.1994.335121
