Flat Top Beam Technology Improves Medical Beam Delivery Fibers

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Laser beams with a uniform intensity profile, sometimes called a “flat-top” or “top-hat” distribution, generally offer higher efficiency and better surgical outcomes than the traditional Gaussian intensity profile. But, most lasers inherently produce a Gaussian intensity output, and converting this into a flat-top distribution usually isn’t practical in medical laser systems for both cost and performance reasons. To address this need, Coherent has developed a new generation of beam delivery fibers that are internally structured to convert an input Gaussian beam into flat-top. These provide a simple way to obtain flat-top output in fiber beam delivery systems without substantially increasing system cost or complexity.