  Operating reconfigurable quantum circuits with single photon sources is a key
goal of photonic quantum information science and technology. We use an
integrated waveguide device comprising of directional couplers and a
reconfigurable thermal phase controller to manipulate single photons emitted
from a chromium related colour centre in diamond. Observation of both a
wave-like interference pattern and particle-like sub-Poissionian
autocorrelation functions demonstrates coherent manipulation of single photons
emitted from the chromium related centre and verifies wave particle duality.
