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.
- Received 28 January 2016
DOI:https://doi.org/10.1103/PhysRevLett.117.123902
© 2016 American Physical Society
Physics Subject Headings (PhySH)
Focus
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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