Direct generation of arbitrary complex fields from a ring laser resonator  

作　　者：Cong Hu Yu Xiao Hao Peng Xiahui Tang 胡聪;肖瑜;彭浩;唐霞辉(School of Optical and Electronic Information,Huazhong University of Science and Technology,Wuhan 430074,China;Research Institute of Huazhong University of Science and Technology in Shenzhen,Shenzhen 518052,China)

机构地区：[1]School of Optical and Electronic Information,Huazhong University of Science and Technology,Wuhan 430074,China [2]Research Institute of Huazhong University of Science and Technology in Shenzhen,Shenzhen 518052,China

出　　处：《Chinese Optics Letters》2024年第11期93-97,共5页中国光学快报(英文版)

基　　金：supported by the National Key R&D Program of China (No.2023YFB3610701);the Hubei Provincial Central-Guided Local Science and Technology Development Special Program (2023CGB001);the Hubei Provincial Key Research and Development Program (No.2022BAA009);the Major Science and Technology Special Project of Hubei Province (No.2021AAA009);the Wuhan Science and Technology Project (No.20210120020234244);the Major Program (JD) of Hubei Province (No.2023BAA015)。

摘　　要：On-demand and real-time generation of arbitrary complex fields directly from the laser source holds significant appeal for myriad applications. In this Letter, we demonstrate a ring laser configuration capable of dynamically generating arbitrary transverse fields. In a ring laser resonator, two cascaded phase modulations are utilized, which permits the control of two beams with high efficiency and high fidelity. The zeroth-order beam is a fundamental Gaussian field that self-reproduces itself in the resonator. The first-order beam serves as the desired output field, which is separated from the selfreproduction mode to facilitate the on-demand manipulation of amplitude and phase. In the verification experiments,a series of typical Hermite–Gaussian(HG) modes, Laguerre–Gaussian(LG) modes, flat-top mode, and amplitude-only pattern“A” are generated from the ring laser configuration. This innovative ring laser resonator may open up new perspectives for the design of structured-light lasers, with potential impacts in applications such as particle manipulation, advanced microscopy, and next-generation optical communication.

关 键 词：structured-light laser phase modulation intracavity light-field manipulation global optimization algorithm 

分 类 号：TN2[电子电信—物理电子学]