Reflectionless spatial beam benders with arbitrary bending angle by introducing optic-null medium into transformation optics
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DOI: 10.1088/1674-1056/abd38b
Abstract: By introducing an optic-null medium into the finite embedded transformation, a reflectionless spatial beam bender is designed, which can steer the output beam by a fixed pre-designed angle β for an arbitrary incident angle. The… read more here.
Keywords: angle; spatial beam; beam; optic null ... See more keywords
On Demand Spatial Beam Self-Focusing in Hexagonal Multicore Fiber
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DOI: 10.1109/jphot.2018.2797198
Abstract: Combination of the classical effect of light self-focusing and recently emerged multicore fiber technology offers new opportunities for the spatio-temporal control and manipulation of high-power light radiation. Here, we apply genetic algorithm to design a… read more here.
Keywords: spatial beam; self focusing; multicore fiber; demand spatial ... See more keywords
Spatial Beam Self-Cleaning in Tapered Yb-Doped GRIN Multimode Fiber With Decelerating Nonlinearity
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2020.2979938
Abstract: We experimentally demonstrate spatial beam self-cleaning in an Yb-doped graded-index multimode fiber taper, both in passive and active configurations. The input laser beam at 1064 nm was injected for propagation from the small to the large… read more here.
Keywords: self cleaning; multimode fiber; spatial beam; beam ... See more keywords
Weld Seam Geometry and Electrical Resistance of Laser-Welded, Aluminum-Copper Dissimilar Joints Produced with Spatial Beam Oscillation
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DOI: 10.3390/met8070510
Abstract: Spatial beam oscillation during laser beam welding of aluminum to copper was investigated. The beam was spatially oscillated perpendicular to the direction of feed in a sinusoidal mode. The influence of the oscillation amplitude and… read more here.
Keywords: spatial beam; beam oscillation; copper; geometry ... See more keywords
Spatial Beam Self-Cleaning in Bi-Tapered Multimode Fibers
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DOI: 10.3390/photonics8110479
Abstract: We report the spatial beam self-cleaning in bi-tapered conventional multimode fibers (MMFs) with different tapered lengths. Through the introduction of the bi-tapered structure in MMFs, the input beam with poor beam quality from a high-power… read more here.
Keywords: spatial beam; cleaning tapered; self cleaning; beam self ... See more keywords