Defienne, H. and Faccio, D. (2020) Arbitrary spatial mode sorting in a multimode fiber. Physical Review A: Atomic, Molecular and Optical Physics, 101(6), 063830. (doi: 10.1103/PhysRevA.101.063830)
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Abstract
Sorting spatial optical modes is a key challenge that underpins many applications from superresolved imaging to high-dimensional quantum key distribution. However, to date, implementations of optical mode sorters only operate on specific sets of modes, such as those carrying orbital angular momentum, and therefore lack versatility with respect to operation with an arbitrary spatial basis. Here we demonstrate an arbitrary spatial mode sorter by harnessing the random mode mixing process occurring during light propagation in a multimode fiber by wave-front shaping. By measuring the transmission matrix of the fiber, we show sorting of up to 25 transverse spatial modes of the Fourier, Laguerre-Gaussian, and random basis to an arbitrary set of positions at the output. Our approach provides a spatial mode sorter that is compact, easy to fabricate, programable, and usable with any spatial basis, which is promising for quantum and classical information science.
| Item Type: | Articles |
|---|---|
| Additional Information: | D.F. acknowledges financial support from the UK Engineering and Physical Sciences Research Council (Grants No. EP/T00097X/1 and No. EP/R030081/1) and from the European Union’s Horizon 2020 research and innovation program under Grant Agreement No. 801060. H.D. acknowledges funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 840958. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Defienne, Dr Hugo and Faccio, Professor Daniele |
| Authors: | Defienne, H., and Faccio, D. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Physical Review A: Atomic, Molecular and Optical Physics |
| Publisher: | American Physical Society |
| ISSN: | 2469-9926 |
| ISSN (Online): | 2469-9934 |
| Published Online: | 24 June 2020 |
| Copyright Holders: | Copyright © 2020 American Physical Society |
| First Published: | First published in Physical Review A 101(6):063830 |
| Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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