Generation of cylindrical vector beams based on fiber Bragg gratings inscribed in ring core fibers
Year: 2025
Type: article
Abstract: We propose a method for generating an all-fiber cylindrical vector beam (CVB) using a fiber Bragg grating (FBG) inscribed in a ring core fiber (RCF).The FBGs are inscribed using the femtosecond laser phase mask scanning technique, chosen for its large ring core diameter and low photosensitivity of the RCF.Additionally, a lateral offset splicing spot is introduced to couple the fundamental mode to the second-order modes.Switchable LP 01 and LP 11 mode lasers can be achieved.Meanwhile, azimuthally and radially polarized CVBs are successfully realized by adjusting the polarization controllers.
Source: Chinese Optics Letters
Authors: Yajun Jiang, Kangwei Pan, Feng Zhou, Liqin Cheng, Yuhui Su, Li Shen, Jiaxin Gao, Binchuan Sun, Dexing Yang, Jianlin Zhao
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Awards: G1796785441, G4187916896
OpenAlex ID: W4411499492