On-chip quantum storage in a rare-earth-doped photonic nanocavity

Tian Zhong; Jonathan M. Kindem; Jake Rochman; Evan Miyazono; Andrei Faraon; Alban Ferrier; Philippe Goldner

doi:10.1117/12.2211999

15 March 2016 On-chip quantum storage in a rare-earth-doped photonic nanocavity

Tian Zhong, Jonathan M. Kindem, Jake Rochman, Evan Miyazono, Andrei Faraon, Alban Ferrier, Philippe Goldner

Proceedings Volume 9762, Advances in Photonics of Quantum Computing, Memory, and Communication IX; 97620J (2016) https://doi.org/10.1117/12.2211999
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

Rare-earth-ion doped crystals are state-of-the-art materials for optical quantum memories and quantum transducers between optical and microwave photons. Here we describe our progress towards a nanophotonic quantum memory based on a rare-earth (Neodymium) doped yttrium orthosilicate (YSO) photonic crystal resonator. The Purcell-enhanced coupling of the 883 nm transitions of Neodymium (Nd³⁺) ions to the nano-resonator results in increased optical depth, which could in principle facilitate highly efficient photon storage via cavity impedance matching. The atomic frequency comb (AFC) memory protocol can be implemented in the Nd:YSO nano-resonator by efficient optical pumping into the long-lived Zeeman state. Coherent optical signals can be stored and retrieved from the AFC memory. We currently measure a storage efficiency on par with a bulk crystal Nd:YSO memory that is millimeters long. Our results will enable multiplexed on-chip quantum storage and thus quantum repeater devices using rare-earth-ions.

Citation Download Citation

Tian Zhong, Jonathan M. Kindem, Jake Rochman, Evan Miyazono, Andrei Faraon, Alban Ferrier, and Philippe Goldner "On-chip quantum storage in a rare-earth-doped photonic nanocavity", Proc. SPIE 9762, Advances in Photonics of Quantum Computing, Memory, and Communication IX, 97620J (15 March 2016); https://doi.org/10.1117/12.2211999

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