Figure 5. Polarization correlation results from the ST-ELED under electrically pulsed injection at repetition rate of 400 MHz.

(a) Normalized correlation functions for co- and cross-polarized XX and X photons in HV, DA and RL bases. (b,c) Degree of correlation C in given basis, in which correlation in HV and DA bases (C>0) and anti-correlation (C<0) in RL basis are obtained without temporal gate (Δτ=2.5 ns) and with a temporal gate width Δτ=0.8 ns centred at 0 delay time, respectively.