Transverse Anderson Localization Enhancement for Low-Filling-Rate Glass–Air Disordered Fibers by Optimizing the Diameter of Air Holes
Jiajia Zhao,
Yali Zhao,
Changbang He,
Jinshuai Zhang,
Yiyu Mao,
Wangyang Cai,
Haimei Luo
Affiliations
Jiajia Zhao
School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha 410114, China
Yali Zhao
School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha 410114, China
Changbang He
School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha 410114, China
Jinshuai Zhang
School of Materials Science and Engineering, Peking University, Beijing 100871, China
Yiyu Mao
School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha 410114, China
Wangyang Cai
School of Computer and Communication Engineering, Changsha University of Science and Technology, Changsha 410114, China
Haimei Luo
Key Laboratory of Optoelectronics and Telecommunication of Jiangxi Province, Department of Photoelectric, Information Science and Engineering, Jiangxi Normal University, Nanchang 330022, China
We demonstrate a method to enhance the transverse Anderson localization (TAL) effect of the glass–air disordered optical fiber (G-DOF) by adjusting the number and diameter of air holes. This method does not need to enlarge the air-filling fraction of G-DOF, leading to the mitigation of fabrication complexity. By choosing the appropriate diameter and number of air holes, the average localized beam radius of G-DOF with the highest air-filling fraction of 30% can be successfully reduced by 18%. Moreover, the proposed method is always functional for the situations of the air-filling fraction lower than 50%. We also identify that, under the same air-filling fraction, a larger number of air holes in the G-DOF leads to the smaller standard deviation of the corresponding localized beam radius, indicating a stable fiber structure. The results will provide new guidance on the G-DOF design.
