Frequency-multiplexed on-demand storage in five modes of atomic frequency comb through simultaneous application of control pulses

In quantum communication with quantum repeaters, multiplexed quantum memory is expected to enhance communication rates. When using an atomic frequency comb (AFC) for on-demand storage, the frequency mode number is often limited by the optical power of the control pulses. Here, using a space-coupled...

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Bibliographic Details
Published in:Applied optics (2004) 2024-03, Vol.63 (7), p.1875
Main Authors: Masuko, Taihei, Yoshida, Daisuke, Aida, Ayaka, Hong, Feng-Lei, Horikiri, Tomoyuki
Format: Article
Language:English
Subjects:
Atomic properties
Multiplexing
Quantum phenomena
Waveguides
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Summary:In quantum communication with quantum repeaters, multiplexed quantum memory is expected to enhance communication rates. When using an atomic frequency comb (AFC) for on-demand storage, the frequency mode number is often limited by the optical power of the control pulses. Here, using a space-coupled waveguide electro-optic modulator, we increased the output power, allowing us to apply control pulses to multiple modes simultaneously. Further, through enhancement of an experimental setup that increases power density, we increased the number of modes. Consequently, we pioneered, to the best of our knowledge, on-demand storage using five modes of AFC. This technology is a significant achievement toward frequency-multiplexed on-demand quantum memory.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.514004