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Appl. Sci. 2018, 8(8), 1313; https://doi.org/10.3390/app8081313

Coupling Efficiency of a Partially Coherent Radially Polarized Vortex Beam into a Single-Mode Fiber

1
School of Physical Science and Technology, Soochow University, Suzhou 215006, China
2
Department of Physics, Hangzhou Normal University, Hangzhou 310036, China
3
Center of Light Manipulation and Application, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
*
Author to whom correspondence should be addressed.
Received: 27 June 2018 / Revised: 26 July 2018 / Accepted: 4 August 2018 / Published: 7 August 2018
(This article belongs to the Special Issue Recent Advances in Statistical Optics and Plasmonics)
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Abstract

We study the problem of coupling partially coherent radially polarized (PCRP) vortex beams into a single-mode optical fiber. Using the well-known concept of the cross-spectral density (CSD) matrix, we derive a general expression for the coupling efficiency of the partially coherent beam into a single-mode fiber. We adopt PCRP vortex beams for incident beams and use our general results to discuss the effects of the coherence, topological charge, and wavelength on the coupling efficiency of an optical beam focused onto a single-mode fiber with a lens. Our results should be useful for any application that requires coupling of partially coherent beams into optical fibers. View Full-Text
Keywords: coupling efficiency; partially coherent; vortex beam; single-mode fiber coupling efficiency; partially coherent; vortex beam; single-mode fiber
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Zhu, X.; Wang, K.; Wang, F.; Zhao, C.; Cai, Y. Coupling Efficiency of a Partially Coherent Radially Polarized Vortex Beam into a Single-Mode Fiber. Appl. Sci. 2018, 8, 1313.

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