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Proceedings Paper

Pulsed fibre laser with spatial and temporal control
Author(s): Paulo Almeida; Philip Gorman; Jaclyn S. Chan; Natasha Vukovic; Christophe A. Codemard; Michalis N. Zervas
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Paper Abstract

We report on novel approach to switch the optical beam profile in a fibre laser using a short piece of special passive fibre. The switching mechanism relies on selective wavelength resonance between the core and a high index surrounding ring in the fibre. Beam switching at 530 kHz from a Gaussian beam shape to a flat-top beam with a ring with corresponding M2 from 1.4 to 3.5 is demonstrated in a modified industrial pulsed fibre laser.

Paper Details

Date Published: 26 February 2018
PDF: 4 pages
Proc. SPIE 10512, Fiber Lasers XV: Technology and Systems, 1051215 (26 February 2018); doi: 10.1117/12.2289838
Show Author Affiliations
Paulo Almeida, SPI Lasers UK Ltd. (United Kingdom)
Philip Gorman, SPI Lasers UK Ltd. (United Kingdom)
Jaclyn S. Chan, Univ. of Southampton (United Kingdom)
Natasha Vukovic, Univ. of Southampton (United Kingdom)
Christophe A. Codemard, SPI Lasers UK Ltd. (United Kingdom)
Michalis N. Zervas, SPI Lasers UK Ltd. (United Kingdom)
Univ. of Southampton (United Kingdom)

Published in SPIE Proceedings Vol. 10512:
Fiber Lasers XV: Technology and Systems
Ingmar Hartl; Adrian L. Carter, Editor(s)

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