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Divergence-degenerated spatial multiplexing towards ultrahigh capacity, low bit-error-rate optical communications
Zhensong Wan, Yijie Shen, Zhaoyang Wang +3
Spatial mode (de)multiplexing of orbital angular momentum (OAM) beams is a promising solution to address future bandwidth issues, but the rapidly increasing divergence with the mod…
Deep-learning-based recognition of multi-singularity structured light
Hao Wang, Xilin Yang, Zeqi Liu +8
Structured light with customized complex topological pattern inspires diverse classical and quantum investigations underpinned by accurate detection techniques. However, the curren…
High-performance transmission of optical vortices through scattering media with opaque-lens field transformation theory
Hengkang Zhang, Bin Zhang, Zhensong Wan +1
The applications of vortex beam in biomedical field are always hindered by light scattering of biological tissues. Recently wavefront shaping technology has shown the potential in…
Two-dimensional-controlled high-order modes and vortex beams from an intracavity mode converter laser
Jing Pan, Yijie Shen, Zhensong Wan +3
We present a novel scheme of structured light laser with an astigmatic mode converter (AMC) as intracavity element, first enabling the generation of Hermite-Gaussian (HG) modes wit…
Polygonal vortex beams in quasi-frequency-degenerate states
Yijie Shen, Zhensong Wan, Yuan Meng +2
We originally demonstrate the vortex beams with patterns of closed polygons [namely polygonal vortex beams (PVBs)] generated by a quasi-frequency-degenerate (QFD) Yb:CALGO laser re…