Double-clad fibers for high-power fiber lasers

Peterka, Pavel

doi:10.1051/epjconf/202024302001

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2024

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“…Fiber lasers, though born at almost the same time as groundbreaking inventions of laser and single-mode optical fiber in sixties, have been waiting for to their golden times several decades [1][2][3] and now they outperform other laser sources by high brightness and beam quality, efficient pumping, enhanced cooling, and compactness [4][5][6][7][8]. Despite the rapid progress of fiber laser technology, especially in the new millennium, many issues have to be resolved and new fiber designs are investigated.…”

Section: Introductionmentioning

confidence: 99%

Dual-wavelength fiber lasers based on active fibers with structured cores

Peterka,

Barton,

Varák

et al. 2024

Fiber Lasers XXI: Technology and Systems

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Nanostructured or "pixelated" core fibers have attracted great attention thanks to possible design of optical fibers with almost arbitrary refractive index profile, including gradient index nanostructured core, large mode area fibers for high power applications or fiberized free-form optical components. A short review of applications of (nano)structured core active fibers in fiber lasers will be given followed by detailed study of the effect of heat treatment and fiber drawing on the luminescence properties important for fiber laser performance; and application of the erbium-and ytterbium structured-core active fibers in fiber lasers that operate simultaneously at 1 and 1.55 micrometer wavelengths.

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