Design of vortex optical fibers for RoF systems: Part I: overview and alternative solutions

In this paper, an alternative fiber-optic method for forming vortex modes based on a chiral (twisted) microstructured fiber is proposed. This fiber can be considered as a ring-core fiber with ring core formed by capillaries. Besides, optical fibers design for transmitting optical vortexes over long distances. i.e. a vortex-maintaining fiber is also proposed. This fiber is a multimode fiber with an extremely large core. A comparison of the different types of vortex generation and vortex-maintaining fibers is also given. Both proposed fibers can be used in Radio over Fiber systems applying vortex beams.

[1]  D. J. Richardson,et al.  Annular core photonic lantern OAM mode multiplexer , 2017, 2017 Optical Fiber Communications Conference and Exhibition (OFC).

[2]  Lixin Xu,et al.  Generation of Optical Vortices Using a Helical Fiber Bragg Grating , 2014, Journal of Lightwave Technology.

[3]  Zhongmin Yang,et al.  All-fiber orbital angular momentum mode generation and transmission system , 2017 .

[4]  Bo Liu,et al.  Generation and excitation of different orbital angular momentum states in a tunable microstructure optical fiber. , 2015, Optics express.

[5]  Vladimir Demidov,et al.  New possibilities of higher-order mode filtering in large-mode-area photonic crystal fibers , 2014, Photonics Europe.

[6]  A. E. Willner,et al.  Special Issue on Novel Insights into Orbital Angular Momentum Beams: From Fundamentals, Devices to Applications , 2019, Applied Sciences.

[7]  Siddharth Ramachandran,et al.  Generation and propagation of radially polarized beams in optical fibers. , 2009, Optics letters.

[8]  Yongmin Jung,et al.  Photonic lantern broadband orbital angular momentum mode multiplexer. , 2018, Optics express.

[9]  Baiwei Mao,et al.  Complex analysis between CV modes and OAM modes in fiber systems , 2018, Nanophotonics.

[10]  Hong Zhou,et al.  Orbital Angular Momentum Waves: Generation, Detection, and Emerging Applications , 2019, IEEE Communications Surveys & Tutorials.

[11]  Anting Wang,et al.  Generation and Conversion of Higher Order Optical Vortices in Optical Fiber With Helical Fiber Bragg Gratings , 2016, Journal of Lightwave Technology.

[12]  Konstantin V. Dukelskii,et al.  Design and Characterization of Single-Mode Microstructured Fibers with Improved Bend Performance , 2012 .

[13]  L A Rusch,et al.  Few-mode fiber with inverse-parabolic graded-index profile for transmission of OAM-carrying modes. , 2014, Optics express.

[14]  S. M. Idrus,et al.  An overview of radio-over-fiber network technology , 2010, International Conference On Photonics 2010.

[15]  José Azaña,et al.  All-Fiber OAM Generation/Conversion Using Helically Patterned Photonic Crystal Fiber , 2017, IEEE Photonics Technology Letters.