1-8 July 2022
Virtual Conference
Africa/Johannesburg timezone
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Flatptop beam shaping for use in optical fiber.

7 Jul 2022, 12:15
15m
Zoom Platform (Virtual Conference)

Zoom Platform

Virtual Conference

Oral Presentation Track C - Photonics Photonics

Speaker

Ms Ashley Phala (University of Witwatersrand )

Description

Laser beams structured with a uniform flattop profile have become a topic of interest in
industrial fields such high-power beam delivery directly to the point of contact for laser cutting,
welding and additive manufacturing. These applications require fibre delivery of the optical
mode to the point of contact. Here, we generate and tailor a flattop profile using a spatial light
modulator. We propagate the flattop into a few mode fiber and compare the Stokes polarimetry
measurements before and after the fiber, as well as the modal decomposition of the initial and
emerging flattop modes to determine their modal content.

Level for award;(Hons, MSc, PhD, N/A)?

Msc

Apply to be considered for a student ; award (Yes / No)? Yes

Primary author

Ms Ashley Phala (University of Witwatersrand )

Co-authors

Mrs Angela Dudley (University of Witwatersrand ) Prof. Andrew Forbes (University of Witwatersrand )

Presentation Materials