We perform on-chip heterodyne tomography of the quantum state generated by a heralded microring single photon source. The quantum state is generated and characterized without ever being coupled off-chip.
We demonstrate a homodyne detector consisting of integrated silicon waveg uides and Si-Ge photodiodes wirebonded directly to an amplification integrated circuit. The device performance is verified by detecting squeezed vacuum over 9 GHz of optical bandwidth.
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