An On-chip Homodyne Detector for Measuring Quantum States

Dylan H. Mahler,Francesco Raffaelli,Giacomo Ferranti,Philip Sibson,Jake E. Kennard,Alberto Santamato,Gary Sinclair,Damien Bonneau,Mark G. Thompson,Jonathan C. F. Matthews

Conference on Lasers and Electro-Optics（2017）

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摘要

We present the first silicon-integrated homodyne detector suitable for characterising quantum states of light travelling in a silicon waveguide. We report high-fidelity quantum state tomography of coherent states. The device was also used to generate random numbers at a speed of 1.2 Gbps.

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关键词

quantum optics,integrated optics,quantum measurements,silicon photonics

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