2019/01/31 by Shuiqin Zheng, Xuanke Zeng, Huangcheng Shangguan +5 · 1 citation
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Optical Network Technologies #Orbital Angular Momentum in Optics
paper · doi:10.1364/ol.44.000795
openalex publication_date 2019/01/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Vector beams with different polarization topological orders (PTOs) are the eigenmodes of traditional optical fibers and are orthogonal to each other, so the PTO multiplexing channel is a promising candidate for the oncoming generation of optical communication. Here we demonstrate experimentally a PTO sorting system with high separation resolution based on the diffractive splitting (DS) method. Our experiments show that our design with the DS method helps to enhance the separation resolution to 77.5% from 58%, compared to a design without the application of a DS method. Theoretically, to increase the copy number can promote the separation resolution further. This Letter provides a high-resolution way to decode information from PTO division multiplexing.