On-chip implementation of the probabilistic quantum optical state comparison amplifier

David W. Canning, Ross J. Donaldson, Sebabrata Mukherjee, Robert J. Collins, Luca Mazzarella, Ugo Zanforlin, John Jeffers, Robert R. Thomson, Gerald S. Buller

Research output: Contribution to journalArticle

Abstract

Propagation losses in transmission media limit the transmission distance of optical signals. In the case where the signal is made up of quantum optical states, conventional deterministic optical amplification schemes cannot be used to increase the transmission distance as the copying of an arbitrary and unknown quantum state is forbidden. One strategy that can offset propagation loss is the use of probabilistic, or non-deterministic, amplification schemes - an example of which is the state comparison amplifier. Here we report a state comparison amplifier implemented in a compact, fiber-coupled femtosecond laser-written waveguide chip as opposed to the large, bulk-optical components of previous designs. This pathfinder on-chip implementation of the quantum amplifier has resulted in several performance improvements: the polarization integrity of the written waveguides has resulted in improved visibility of the amplifier interferometers; the potential of substantially-reduced losses throughout the amplifier configuration; and a more compact and environmentally-stable amplifier which is scalable to more complex networks.

Original languageEnglish
Pages (from-to)31713-31726
Number of pages14
JournalOptics Express
Volume27
Issue number22
Early online date17 Oct 2019
DOIs
Publication statusPublished - 28 Oct 2019

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amplifiers
chips
quantum amplifiers
propagation
waveguide lasers
visibility
integrity
optical communication
interferometers
waveguides
fibers
polarization
configurations

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Canning, David W. ; Donaldson, Ross J. ; Mukherjee, Sebabrata ; Collins, Robert J. ; Mazzarella, Luca ; Zanforlin, Ugo ; Jeffers, John ; Thomson, Robert R. ; Buller, Gerald S. / On-chip implementation of the probabilistic quantum optical state comparison amplifier. In: Optics Express. 2019 ; Vol. 27, No. 22. pp. 31713-31726.
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Canning, DW, Donaldson, RJ, Mukherjee, S, Collins, RJ, Mazzarella, L, Zanforlin, U, Jeffers, J, Thomson, RR & Buller, GS 2019, 'On-chip implementation of the probabilistic quantum optical state comparison amplifier', Optics Express, vol. 27, no. 22, pp. 31713-31726. https://doi.org/10.1364/OE.27.031713

On-chip implementation of the probabilistic quantum optical state comparison amplifier. / Canning, David W.; Donaldson, Ross J.; Mukherjee, Sebabrata; Collins, Robert J.; Mazzarella, Luca; Zanforlin, Ugo; Jeffers, John; Thomson, Robert R.; Buller, Gerald S.

In: Optics Express, Vol. 27, No. 22, 28.10.2019, p. 31713-31726.

Research output: Contribution to journalArticle

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Canning DW, Donaldson RJ, Mukherjee S, Collins RJ, Mazzarella L, Zanforlin U et al. On-chip implementation of the probabilistic quantum optical state comparison amplifier. Optics Express. 2019 Oct 28;27(22):31713-31726. https://doi.org/10.1364/OE.27.031713