Generating the optical vortex by optimizing beam arrangement of the coherent laser array

The concept of the crystallization of a plasmonic vortex lattice (PVL), which is achieved through multiple beam interferences, has been experimentally demonstrated and theoretically investigated. The generation of these ordered sets involves the interference of six plasmonic sources with spin-dependent spiral phases that arise from the interaction between circularly polarized electromagnetic waves and chiral metallic structures. The described components are instrumental in vortex generation and lattice formation. We observed a gradual crystallization of PVL through a quantized process influenced by the array size and its topological properties. It is characterized by the order parameter that was defined in analogy to nematic crystals. We demonstrate the remarkable topological adaptability of the PVL lattices, along with their resilience to perturbations. This underscores their potential for diverse applications in optical communication and data storage.

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主动相位控制光纤激光相干合成技术研究

Zhou Pu,

Su Rongtao,

Ma Yanxing

et al. 2023

光学学报

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Significance Coherent combining of fiber lasers by active phase control is an effective way to break through the power limit of a single fiber laser and achieve higher output power while maintaining good beam quality. Based on the research progress in China and abroad, this paper introduces the representative achievements in the past 20 years made by the coherent beam combination research group in National University of Defense Technology and presents the prospect of coherent beam combining (CBC) of fiber lasers.

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Generating the optical vortex by optimizing beam arrangement of the coherent laser array

Cited by 3 publications

References 53 publications

Controlled in-phase coherent coupling of laser array with monolithically-integrated arrayed Fourier filter

Controlled in-phase coherent coupling of laser array with monolithically-integrated arrayed Fourier filter

Observation of a Plasmonic Vortex Lattice Crystallization

主动相位控制光纤激光相干合成技术研究

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