Time-bin-to-polarization conversion of ultrafast photonic qubits

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  1. National Research Council of Canada. Security and Disruptive Technologies
FormatText, Article
Journal titleQuantum Physics
Abstract
The encoding of quantum information in photonic time-bin qubits is apt for long distance quantum communication schemes. In practice, due to technical constraints such as detector response time, or the speed with which co-polarized time-bins can be switched, other encodings, e.g. polarization, are often preferred for operations like state detection. Here, we present the conversion of qubits between polarization and time-bin encodings using a method that is based on an ultrafast optical Kerr shutter and attain efficiencies of 97% and an average fidelity of 0.827+/-0.003 with shutter speeds near 1 ps. Our demonstration delineates an essential requirement for the development of hybrid and high-rate optical quantum networks.
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PublisherCornell University Library
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LanguageEnglish
Peer reviewedNo
NPARC number23002478
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Record identifier3bdb4b3f-8eb9-4918-8c9d-c2245e8ed73a
Record created2017-11-15
Record modified2020-05-30
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