Abstract

The correlations of photon arrival times in light beams are of fundamental physical interest as they reveal the nature of the photon emission process. Recently, the analysis of ultra-fast photon correlations in temporally incoherent light has been achieved with a modified version of a Hanbury-Brown Twiss interferometer [1]. We utilize this technique to investigate the degree of second order coherence g²(τ) of a liquid nitrogen cooled Quantum Dot Superluminescent Diode (QD SLD) and demonstrate reduced photon bunching in temporally incoherent light, thereby accessing a fascinating new class of photon states.

© 2011 Optical Society of America