Optimization and characterization of high-radiance (Al,Ga)As double-heterostructure LED´s for optical communication systems

Phenomenological models for Burrus-type high-radiance double-heterostructure LED´s are described which make it possible to calculate the maximum optical power emitted from a diode chip, the equilibrium optical power coupled into an optical fiber of a given numerical aperture NA and core diameter, and the transient response of the spontaneous emission of the LED, and afford criteria for optimization of these devices. Measured values of power and rise time are found to agree with theory to a useful degree of approximation. Reliability data for optimized LED´s are presented.