Multifunctional on-chip storage at telecommunication wavelength for quantum networks
Abstract
Quantum networks will enable a variety of applications, from secure communication and precision measurements to distributed quantum computing. Storing photonic qubits and controlling their frequency, bandwidth, and retrieval time are important functionalities in future optical quantum networks. Here we demonstrate these functions using an ensemble of erbium ions in yttrium orthosilicate coupled to a silicon photonic resonator and controlled via on-chip electrodes. Light in the telecommunication C-band is stored, manipulated, and retrieved using a dynamic atomic frequency comb protocol controlled by linear DC Stark shifts of the ion ensemble's transition frequencies. We demonstrate memory time control in a digital fashion in increments of 50 ns, frequency shifting by more than a pulse width (±39MHz), and a bandwidth increase by a factor of 3, from 6 to 18 MHz. Using on-chip electrodes, electric fields as high as 3 kV/cm were achieved with a low applied bias of 5 V, making this an appealing platform for rare-earth ions, which experience Stark shifts of the order of 10 kHz/(V/cm).
Additional Information
© 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Received 12 October 2020; revised 7 December 2020; accepted 7 December 2020 (Doc. ID 412211); published 19 January 2021. We acknowledge Dimitrie-Calin Cielecki for help with electrode simulations, Phillip Jahelka for help with measuring the refractive index of amorphous silicon, Yunbin Guan for help with measuring the erbium concentration, and Andrei Ruskuc and Hirsh Kamakari for building the superconducting magnets for this experiment. I. C. and J. R. acknowledge support from the Natural Sciences and Engineering Research Council of Canada (Grants PGSD2-502755-2017 and PGSD3-502844-2017). J. G. B. acknowledges support from the American Australian Association's Northrop Grumman Fellowship. During the preparation of this paper we became aware of similar work [47]. Funding: Air Force Office of Scientific Research (FA9550-18-1-0374); National Science Foundation (EFRI 1741707); Natural Sciences and Engineering Research Council of Canada (PGSD2-502755-2017, PGSD3-502844-2017); American Australian Association (Northrup Grumman Fellowship). The authors declare no conflicts of interest.Attached Files
Published - optica-8-1-114.pdf
Submitted - 2008.10795.pdf
Supplemental Material - 4980564.pdf
Files
Additional details
- Eprint ID
- 106595
- Resolver ID
- CaltechAUTHORS:20201110-144319268
- FA9550-18-1-0374
- Air Force Office of Scientific Research (AFOSR)
- EFMA-1741707
- NSF
- PGSD2-502755-2017
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- PGSD3-502844-2017
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- American Australian Association
- Northrup Grumman
- Created
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2020-11-10Created from EPrint's datestamp field
- Updated
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2021-04-06Created from EPrint's last_modified field