A novel method to generate a self-accelerating Bessel-like beam based on graded index multimode optical fiber

Yaxun Zhang; Chunlan Liu; Zhang Yu; Zhihai Liu; Enming Zhao; Jun Yang; Libo Yuan

doi:10.1117/12.2194074

28 September 2015 A novel method to generate a self-accelerating Bessel-like beam based on graded index multimode optical fiber

Yaxun Zhang, Chunlan Liu, Zhang Yu, Zhihai Liu, Enming Zhao, Jun Yang, Libo Yuan

Author Affiliations +

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.

Citation Download Citation

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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