Temperature Stablised LED and LD Drive Circuits

Abstract

The Light emitting diode (LED) and Laser Diode (LD) drive circuits for optical fiber communication transmission systems are very sensitive to the variations in temperature as forward current increases and diode junction voltage decreases leading to the poor spectral and circuit stability of the LED and LD drive circuits can be improved by designing the circuits for the two temperature ranges and the circuits analysed in these stability conditions. The performance of such circuits is better than any other design technique.