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On-Chip Strong Coupling and Efficient Frequency Conversion between Telecom and Visible Optical Modes

Xiang Guo, Chang-Ling Zou, Hojoong Jung, and Hong X. Tang
Phys. Rev. Lett. 117, 123902 – Published 16 September 2016
Physics logo See Focus story: Chip Changes Photon Color While Preserving Quantumness
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Abstract

While the frequency conversion of photons has been realized with various approaches, the realization of strong coupling between optical modes of different colors has never been reported. Here, we present an experimental demonstration of strong coupling between telecom (1550 nm) and visible (775 nm) optical modes on an aluminum nitride photonic chip. The nonreciprocal normal-mode splitting is demonstrated as a result of the coherent interference between photons with different colors. Furthermore, a wideband, bidirectional frequency conversion with 0.14 on-chip conversion efficiency and a bandwidth up to 1.2 GHz is demonstrated.

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  • Received 28 January 2016

DOI:https://doi.org/10.1103/PhysRevLett.117.123902

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Focus

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Chip Changes Photon Color While Preserving Quantumness

Published 16 September 2016

A new device that can potentially be scaled up for quantum computing converts visible light to infrared light suitable for fiber-optic transmission without destroying the light’s quantum state.

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Authors & Affiliations

Xiang Guo, Chang-Ling Zou, Hojoong Jung, and Hong X. Tang*

  • Department of Electrical Engineering, Yale University, New Haven, Connecticut 06511, USA

  • *Corresponding author. hong.tang@yale.edu

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Issue

Vol. 117, Iss. 12 — 16 September 2016

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