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28 September 2015 A novel method to generate a self-accelerating Bessel-like beam based on graded index multimode optical fiber
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96347G (2015) https://doi.org/10.1117/12.2194074
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
Abstract
We propose and demonstrate a transverse self-accelerating Bessel-like beam generator based on a graded index multimode optical fiber(GIF). The single-mode fiber and the graded-index multimode fiber are spliced with a defined offset. The offset Δx and the GIF length L affect the final properties of the Bessel-like beam, here we choose the offset Δx=20μm and the GIF length L=430μm to be optimal. The beam accelerates along the designed parabolic path up to 250μm in z direction and 40μm in x direction, the curvature of bending is 16% (40μm/250μm, x/z). This transverse self-accelerating Bessel-like beam generator based on the graded index multimode optical fiber constitutes a new development for high-precision micro particles experiments and manipulations because of its simple structure, high integration and small size.
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Yaxun Zhang, Chunlan Liu, Zhang Yu, Zhihai Liu, Enming Zhao, Jun Yang, and Libo Yuan "A novel method to generate a self-accelerating Bessel-like beam based on graded index multimode optical fiber", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96347G (28 September 2015); https://doi.org/10.1117/12.2194074
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