Electronically programmable photonic molecule

By Mian Zhang, Cheng Wang, Yaowen Hu, Amirhassan Shams-Ansari, Tianhao Ren, Shanhui Fan, Marko Loncar. Nature Photonics, 2018

226 citations recorded by the source corpus.

Physical systems with discrete energy levels are ubiquitous in nature and are fundamental building blocks of quantum technology. Realizing controllable artificial atom- and molecule-like systems for light would enable coherent and dynamic control of the frequency, amplitude and phase of photons1–5. In this work, we demonstrate a ‘photonic molecule’ with two distinct energy levels using coupled lithium niobate microring resonators and control it by external microwave excitation. We show that the frequency and phase of light can be precisely controlled by programmed microwave signals, using concepts of canonical two-level systems including Autler–Townes splitting, Stark shift, Rabi oscillation and Ramsey interference. Through such coherent control, we show on-demand optical storage and retrieval by reconfiguring the photonic molecule into a bright–dark mode pair. These results of dynamic control of light in a programmable and scalable electro-optic system open doors to applications in microwave signal processing6, quantum photonic gates in the frequency domain7 and exploring concepts in optical computing8 and topological physics3,9.Coupled lithium niobate ring resonators enable control of a ‘photonic molecule’ by programmed microwave signals. An on-demand optical storage and retrieval system is demonstrated.

Subfields: Artificial Intelligence, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/1cbaae63dba76823d8089c452167ff55a38d7c7b

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Citations in the corpus

Integrated electro-optics on thin-film lithium niobate (2024, unknown): “More advanced devices enabled by TFLN are coupled-cavity devices 3,6,8,13 .”
2022 Roadmap on integrated quantum photonics (2021, background): “The latter could be realized using an EO photonic molecule [77, 78], formed by coupling two electrically-driven resonators.”
Advances in lithium niobate photonics: development status and perspectives (2022, background): “13(b).(298) Benefits from the low loss TFLN ring resonator and cointegrated microwave electrode, the authors have demonstrated >30 GHz electrical bandwidth, around 0.”