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Conference on Lasers and Electro-Optics

Passive High-Extinction Integrated Photonic Filters for Silicon Quantum Photonics

Mateusz Piekarek, Damien Bonneau, Shigehito Miki, Taro Yamashita, Mikio Fujiwara, Masahide Sasaki, Hirotaka Terai, Michael G. Tanner, Chandra M. Natarajan, Robert H. Hadfield, Jeremy L. O’Brien, Mark G. Thompson

Published Jan 1, 2016• 3 citations
Publisher

Abstract

We demonstrate the generation of correlated photon pairs and pump rejection across two Silicon-on-Insulator photonic integrated circuits. Incoherently cascaded lattice filters are used to provide over 100 dB pump extinction with a CAR of 2.4.
DOI
10.1364/cleo_qels.2016.fm1n.6

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The combination of quantum optics and integrated photonics gives the ability of manipulating, generating, and detecting various quantum states on single chips. One of the major challenge is the on-chip rejection of the pump which contaminate the quantum pair generated by non-linear process. We demonstrated the integration on a single silicon chip a photon-pair generator. The production simultaneously of multiplexed pairs with near-perfect quality was achieved using a ring resonator cavity and a cascaded multimode filter. This new type pump-rejection filter shows a large pump suppression (> 60dB) without any active tuning. All wavelengths are compatible with the ITU channels and with telecom components.
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