Indistinguishable photons from a diode
  We generate indistinguishable photons from a semiconductor diode containing a InAs/GaAs quantum dot. Using an all-electrical technique to populate and control a single-photon emitting state we filter-out dephasing by Stark-shifting the emission energy on timescales below the dephasing time of the state. Mixing consecutive photons on a beam-splitter we observe two-photon interference with a visibility of 64%. 
A. J. Bennett, R. B. Patel, A. J. Shields, K. Cooper, P. Atkinson, C.   A. Nicoll and D. A. Ritchie