Analyzing characteristics of spiral vector beams generated by mixing of orthogonal LP11 modes in a few-mode optical fiber

被引：10

作者：

Krishna, C. Hari ^{[1
]}

Roy, Sourabh ^{[1
]}

机构：

[1] Natl Inst Technol Warangal, Dept Phys, Warangal 506004, Telangana, India

来源：

APPLIED OPTICS | 2018年 / 57卷 / 14期

关键词：

ORBITAL ANGULAR-MOMENTUM; POLARIZED BEAMS; VORTEX BEAMS; POINCARE-SPHERE; GAUSSIAN BEAMS; LIGHT; VORTICES; PROPAGATION; APERTURE; SYSTEM;

D O I：

10.1364/AO.57.003853

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have demonstrated a method for the generation of spiral vector beams using a few-mode optical fiber. The beams are generated due to the combination of orthogonal linearly polarized modes with a tilted polarization vector in the few-mode optical fiber. The excitation of these modes is controlled by the incident state of polarization and coupling conditions at the input end of the fiber. The beams with clockwise and counterclockwise nature of spiral polarization are generated, and switching between them is demonstrated. The obtained results emphasize the strong dependency of polarization of generated spiral vector beams and other orthogonal linearly polarized modes on the input state of polarization. The simulated results of mode mixing are verified experimentally with good agreement. (C) 2018 Optical Society of America

引用

页码：3853 / 3858

页数：6

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