Mode multiplexed single-photon and classical channels in a few-mode fiber
Open accessAbstract
We classically measure the entire propagation matrix of a few-mode fiber and use a spatial light modulator to undo modal mixing and recover single-photons launched onto each of the eigenmodes of the fiber at one end, but arriving as mixed modal superpositions at the other. We exploit the orthogonality of these modal channels to improve the isolation between a quantum and classical channel launched onto different spatial and polarization modes at different wavelengths. The spatial diversity of the channels provides an additional 35dB of isolation in addition to that provided by polarization and wavelength.
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Scaling controlled propagation of single-photon states through random media to multiphoton states is challenging because of the exceptionally high number of spatial and spectral modes of a diffusive medium.
“Whereas controlled propagation of single-photon states through random media has been recently demonstrated (32–34), scaling this approach to multiphoton states is challenging because of the exceptionally high number of spatial and spectral modes of a diffusive medium.”
From Two-photon quantum walk in a multimode fiber (2016) · cites this paper as [32]
Cites
High-fidelity transmission of entanglement over a high-loss free-space channel
Fedrizzi, A., Ursin, R., Herbst, T., Nespoli, M., Prevedel, R., Scheidl, T., Tiefenbacher, F., Jennewein, T., & Zeilinger, A. (2009) · Nature Physics · doi:10.1038/nphys1255 · Cited by 206 · see citing works
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Two-photon quantum walk in a multimode fiber
Defienne, H., Barbieri, M., Walmsley, I. A., Smith, B. J., & Gigan, S. (2016) · Science Advances · doi:10.1126/sciadv.1501054 · Cited by 168 · see citing works
- Authors
- Carpenter, J., Xiong, C., Collins, M. J., Li, J., Krauss, T. F., Eggleton, B. J., Clark, A. S., & Schröder, J.
- Affiliations
- The University of Sydney (AU)
- University of St Andrews (GB)
- ORCID
- Venue
- Optics Express
- Publisher
- Optica Publishing Group
- Published
- 2013-11-15
- Volume
- 21
- Issue
- 23
- Pages
- 28794
- ISSN
- 1094-4087 (ISSN-L)
- OpenAlex
- W2060513952
- Cited by
- 38
- References
- 1
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 2 · 2020: 6 · 2019: 2 · 2018: 2 · 2017: 4 · 2016: 4 · 2015: 3 · 2014: 4 · 2013: 1
- FWCI
- 4.42
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Optics Express (publishedVersion)
- PubMed (publishedVersion)
- RMIT Research Repository (RMIT University Library) (submittedVersion)
- Figshare (submittedVersion)
- Funders
- Australian Research Council (ARC) (CE110001018, DE120100226, DE120101329, DE130101148, LP120100661)
- Engineering and Physical Sciences Research Council (EPSRC) (EP/F001428/1)
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Optical Network Technologies
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Orbital Angular Momentum in Optics
- Keywords
- few-mode fiber, mode multiplexing, classical channels, propagator matrix, spatial light modulator, modal superposition, spatial diversity, polarization modes, wavelength multiplexing
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