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Reconfigurable structured light generation in a multicore fibre amplifier

Reconfigurable structured light generation in a multicore fibre amplifier
Reconfigurable structured light generation in a multicore fibre amplifier

Structured light, with spatially varying phase or polarization distributions, has given rise to many novel applications in fields ranging from optical communication to laser-based material processing. However the efficient and flexible generation of such beams from a compact laser source at practical output powers still remains a great challenge. Here we describe an approach capable of addressing this need based on the coherent combination of multiple tailored Gaussian beams emitted from a multicore fibre (MCF) amplifier. We report a proof-of-concept structured light generation experiment, using a cladding-pumped 7-core MCF amplifier as an integrated parallel amplifier array and a spatial light modulator (SLM) to actively control the amplitude, polarization and phase of the signal light input to each fibre core. We report the successful generation of various structured light beams including high-order linearly polarized spatial fibre modes, cylindrical vector (CV) beams and helical phase front optical vortex (OV) beams.

Adaptive optics, Coherent beam combining, Fibre amplifiers, Structured light, fiber optics and optical communications: fiber optics amplifiers and oscillators
2041-1723
Lin, Di
d858c2c7-6eab-49d8-87e7-6b71d9bad013
Carpenter, Joel
78628132-c944-4247-8b1b-ba29cc82d855
Feng, Yutong
8257a816-5e4a-47bc-8aa2-e364c4d6e21e
Jain, Saurabh
bf4af598-26bf-47f4-a0a4-800095a23eb5
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Feng, Yujun
25a28374-33d9-478f-9bd2-98f0d93231af
Zervas, Michael N.
1840a474-dd50-4a55-ab74-6f086aa3f701
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Lin, Di
d858c2c7-6eab-49d8-87e7-6b71d9bad013
Carpenter, Joel
78628132-c944-4247-8b1b-ba29cc82d855
Feng, Yutong
8257a816-5e4a-47bc-8aa2-e364c4d6e21e
Jain, Saurabh
bf4af598-26bf-47f4-a0a4-800095a23eb5
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Feng, Yujun
25a28374-33d9-478f-9bd2-98f0d93231af
Zervas, Michael N.
1840a474-dd50-4a55-ab74-6f086aa3f701
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3

Lin, Di, Carpenter, Joel, Feng, Yutong, Jain, Saurabh, Jung, Yongmin, Feng, Yujun, Zervas, Michael N. and Richardson, David J. (2020) Reconfigurable structured light generation in a multicore fibre amplifier. Nature Communications, 11 (1), [3986]. (doi:10.1038/s41467-020-17809-x).

Record type: Article

Abstract

Structured light, with spatially varying phase or polarization distributions, has given rise to many novel applications in fields ranging from optical communication to laser-based material processing. However the efficient and flexible generation of such beams from a compact laser source at practical output powers still remains a great challenge. Here we describe an approach capable of addressing this need based on the coherent combination of multiple tailored Gaussian beams emitted from a multicore fibre (MCF) amplifier. We report a proof-of-concept structured light generation experiment, using a cladding-pumped 7-core MCF amplifier as an integrated parallel amplifier array and a spatial light modulator (SLM) to actively control the amplitude, polarization and phase of the signal light input to each fibre core. We report the successful generation of various structured light beams including high-order linearly polarized spatial fibre modes, cylindrical vector (CV) beams and helical phase front optical vortex (OV) beams.

Full text not available from this repository.

More information

Accepted/In Press date: 16 July 2020
e-pub ahead of print date: 10 August 2020
Published date: 1 December 2020
Keywords: Adaptive optics, Coherent beam combining, Fibre amplifiers, Structured light, fiber optics and optical communications: fiber optics amplifiers and oscillators

Identifiers

Local EPrints ID: 443378
URI: http://eprints.soton.ac.uk/id/eprint/443378
ISSN: 2041-1723
PURE UUID: 9bad29e1-5349-4a6c-82a2-e99cb98f7c33
ORCID for Di Lin: ORCID iD orcid.org/0000-0001-5025-9051
ORCID for Yutong Feng: ORCID iD orcid.org/0000-0002-6839-2106
ORCID for Yongmin Jung: ORCID iD orcid.org/0000-0002-9054-4372
ORCID for Yujun Feng: ORCID iD orcid.org/0000-0001-7839-065X
ORCID for Michael N. Zervas: ORCID iD orcid.org/0000-0002-0651-4059
ORCID for David J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

Catalogue record

Date deposited: 24 Aug 2020 16:30
Last modified: 21 Apr 2021 01:43

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