Optical property of few-mode fiber with non-uniform refractive index for cylindrical vector beam generation

Hongye Li; Hongdan Wan; Zuxing Zhang; Bing Sun; Lin Zhang

doi:10.1117/12.2246037

19 October 2016 Optical property of few-mode fiber with non-uniform refractive index for cylindrical vector beam generation

Hongye Li, Hongdan Wan, Zuxing Zhang, Bing Sun, Lin Zhang

Author Affiliations +

Proceedings Volume 10153, Advanced Laser Manufacturing Technology; 101530K (2016) https://doi.org/10.1117/12.2246037
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China

Abstract

This paper investigates optical properties of few-mode fiber with non-uniform refractive index, namely: the few mode fiber with U-shape refractive index and the two-mode and four-mode few-mode fiber with bent radius. Finite element method is used to analyze the mode distributions based on their non-uniform refractive index. Effective mode control can be achieved through these few mode fibers to achieve vector beam generation. Finally, reflection spectra of a few-mode fiber Bragg grating are calculated theoretically and then measured under different bending conditions. Experimental results are in good accordance with the theoretical ones. These few mode fibers show potential applications in generation of cylindrical vector beam both for optical lasing and sensing systems.

Citation Download Citation

Hongye Li, Hongdan Wan, Zuxing Zhang, Bing Sun, and Lin Zhang "Optical property of few-mode fiber with non-uniform refractive index for cylindrical vector beam generation", Proc. SPIE 10153, Advanced Laser Manufacturing Technology, 101530K (19 October 2016); https://doi.org/10.1117/12.2246037

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