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Fast and controllable beam switching in a pulsed fiber laser

Fast and controllable beam switching in a pulsed fiber laser
Fast and controllable beam switching in a pulsed fiber laser

In this letter, we demonstrate a fast fiber mode converter in a short piece of special passive fiber. The switching mechanism relies on selective wavelength resonance between the core and a high index surrounding ring in the fiber. Beam switching at 530 kHz from a Gaussian beam shape to an expanded beam with a ring with corresponding M2 from 1.4 to 3.5 is demonstrated in a modified industrial pulsed fiber laser at power levels in the excess of 15 W.

beam delivery, beam switching, High power fiber laser
1041-1135
927-930
Vukovic, Natasha
3de33ba9-eb8f-4a06-a65e-4ac0a602a157
Almeida, Paulo
94d05bc1-3cb1-4394-af30-9ab1c36b0311
Chan, Jaclyn
7339d99a-1d44-4313-91a7-8d2452b21069
Codemard, Christophe
3aa50483-b61c-4e7e-b178-c9a88bb47bef
Zervas, Michalis N.
1840a474-dd50-4a55-ab74-6f086aa3f701
Vukovic, Natasha
3de33ba9-eb8f-4a06-a65e-4ac0a602a157
Almeida, Paulo
94d05bc1-3cb1-4394-af30-9ab1c36b0311
Chan, Jaclyn
7339d99a-1d44-4313-91a7-8d2452b21069
Codemard, Christophe
3aa50483-b61c-4e7e-b178-c9a88bb47bef
Zervas, Michalis N.
1840a474-dd50-4a55-ab74-6f086aa3f701

Vukovic, Natasha, Almeida, Paulo, Chan, Jaclyn, Codemard, Christophe and Zervas, Michalis N. (2019) Fast and controllable beam switching in a pulsed fiber laser. IEEE Photonics Technology Letters, 31 (12), 927-930, [8704948]. (doi:10.1109/LPT.2019.2913472).

Record type: Article

Abstract

In this letter, we demonstrate a fast fiber mode converter in a short piece of special passive fiber. The switching mechanism relies on selective wavelength resonance between the core and a high index surrounding ring in the fiber. Beam switching at 530 kHz from a Gaussian beam shape to an expanded beam with a ring with corresponding M2 from 1.4 to 3.5 is demonstrated in a modified industrial pulsed fiber laser at power levels in the excess of 15 W.

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More information

Accepted/In Press date: 23 April 2019
e-pub ahead of print date: 2 May 2019
Published date: 15 June 2019
Keywords: beam delivery, beam switching, High power fiber laser

Identifiers

Local EPrints ID: 433272
URI: http://eprints.soton.ac.uk/id/eprint/433272
ISSN: 1041-1135
PURE UUID: c55c3648-eb2a-4c19-a7bd-a30d3309b8a8
ORCID for Michalis N. Zervas: ORCID iD orcid.org/0000-0002-0651-4059

Catalogue record

Date deposited: 12 Aug 2019 16:30
Last modified: 28 Apr 2022 01:35

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Contributors

Author: Natasha Vukovic
Author: Paulo Almeida
Author: Jaclyn Chan

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