An On-Chip Homodyne Detector for Measuring Quantum States

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

2018 IEEE Photonics Society Summer Topical Meeting Series (SUM)（2018）

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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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