On-demand rapid switching of fiber transverse mode based on a photonic lantern
Year: 2025
Type: article
Abstract: We propose what we believe to be a new approach to achieve on-demand rapid switching of fiber transverse mode by utilizing a mode-control laser system based on a photonic lantern. The phase conjugate hologram of the transverse mode is loaded onto the liquid crystal spatial light modulator (LC-SLM) to provide an evaluation function for the stochastic parallel gradient descent (SPGD) algorithm of the mode-switching laser system. This system can achieve fundamental mode (FM) and high-order modes (HOMs) with high purity, mode superimposition, and mode switching according to different practical application requirements. The LP 01 , LP 11 , and orbital angular momentum (OAM) with a mode purity greater than 90% are obtained, and the superimposed output of the LP 01 and LP 11 modes is realized. The output can be switched between modes in less than 5 ms. It holds great potential for applications in mode division multiplexing (MDM), industrial materials processing, and high-power fiber lasers.
Source: Optics Express
DOI: 10.1364/oe.571743
Authors: Lianchuang Ding, Yanyang Hu, Baozhu Yan, Xingao Gao, Shuailin Liu, Junyu Chai, Wenguang Liu
Institution: Hangzhou Dianzi University
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
Award: G3919546484
OpenAlex ID: W4415602712