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 :
driver circuits; light emitting diodes; local area networks; optical communication equipment; optical links; 1.25 Gbit/s; 500 MHz; ECL compatible data stream; LED; active current shaping network; bandwidth roll-off; clock signal; digital fiber optic link; driver circuit; local area fiber optic network; optical transmitter; performance evaluation; receiver/clock recovery; receiver/clock recovery circuit; Bandwidth; Clocks; Design methodology; Driver circuits; Light emitting diodes; Optical design; Optical fiber networks; Optical fibers; Optical receivers; Optical transmitters;
Conference_Titel :
Telesystems Conference, 1994. Conference Proceedings., 1994 IEEE National
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-1869-2
DOI :
10.1109/NTC.1994.316687
