Fast Blind Equalisation Based on a Bayesian Decision Feedback Equaliser

mined by the thermal distribution. With increasing temperature, the broadening of the distribution function increases. In addition, the spectrum shifts to longer wavelengths due to the temperature dependence of the bandgap. The magnitude of the emission decreases with increasing temperature due to the dominance of nonradiative recombination processes. We also measured the temperature dependence of the external quantum efliciency of an LED (Fig. 3). This measurement was calibrated -by placing a_ large area (0.5 cm2) InSb detector in