Silent White Light: Intensity Noise Suppression in Superluminescent Diodes

Temperature dependent suppression of intensity noise below thermal fluctuations g (2) (0) < 2 in incoherent quantum dot superluminescent diodes (QDSLDs) has been observed by Blazek et al. in 2011 [1] . First-order temporal correlation properties of QDSLDs have been investigated using quantized treatments [2] and stochastic simulations [3] . We show that the noise suppression can be interpreted as a nonlinear damping effect by considering the interaction between a statistically distributed classical electric field and a pumped atomic three-level-system.