11 May 2012 Top-hat beam output from a large mode area microstructured fiber for beam delivery
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Proceedings Volume 8433, Laser Sources and Applications; 84330K (2012); doi: 10.1117/12.921691
Event: SPIE Photonics Europe, 2012, Brussels, Belgium
Abstract
We present a new passive air/silica microstructured optical fiber designed to be single mode and which delivers a flat-top intensity profile at 1 μm. By inclusion of a raised index ring surrounding the central core, the refractive index profile of the fiber flattens the intensity distribution of the fundamental mode. Experimental results clearly demonstrate the feasibility of all-fibered top-hat beam delivery systems with one spatial mode suitable for many applications.
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Pierre Calvet, Constance Valentin, Yves Quiquempois, Géraud Bouwmans, Laurent Bigot, Marc Douay, Arnaud Mussot, Emmanuel Hugonnot, "Top-hat beam output from a large mode area microstructured fiber for beam delivery", Proc. SPIE 8433, Laser Sources and Applications, 84330K (11 May 2012); doi: 10.1117/12.921691; https://doi.org/10.1117/12.921691
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KEYWORDS
Beam delivery

Fiber lasers

Refractive index

Beam shaping

Laser applications

Laser marking

Near field

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