We propose and experimentally demonstrate the complete simultaneous modulation of amplitude, phase arbitrary state polarization optical beams. Based on a 4-f system including spatial light modulator (SLM), two orthogonally polarized beams serving as base vector components are produced by computer generated hologram. The complex amplitude orthogonal is realized macro-pixel encoding technique purposely designed for phase-only SLMs. Vector can be created from coaxial superposition This enables...

Optical wave packets that are localized in space and time, but nevertheless overcome diffraction travel rigidly free space, a long sought-after field structure with applications ranging from microscopy remote sensing, to nonlinear quantum optics. However, synthesizing such requires introducing non-differentiable angular dispersion high spectral precision two transverse dimensions, capability has eluded optics date. Here, we describe an experimental strategy capable of sculpting the...

Since their discovery in the 1990s, vortex beams, known for ability to carry orbital angular momentum (OAM), have found substantial applications optical manipulation and high-dimensional classical quantum information communication. However, inherent diffraction free space, resulting OAM-dependent beam expansion, has constrained utility spatial mode multiplexing communication, fiber optic transmission, particle manipulation. These domains necessitate beams with OAM-independent propagation...

Recognized in the 1990s, vortex beams' ability to carry orbital angular momentum (OAM) has significantly contributed applications optical manipulation and high-dimensional classical quantum information communication. However, inherent diffraction free space results inevitable expansion of beam size divergence contingent upon OAM, limiting applicability areas such as spatial mode multiplexing communication, fiber-optic data transmission, particle manipulation. These domains necessitate beams...

In this paper, to achieve higher robustness against atmospheric turbulence for high-capacity free-space optical (FSO) communications, an adaptive multi-modal FSO transceiver has been designed and experimentally demonstrated. We show that based on the dynamically estimated channel state information, modulation formats power different transmit modes can be adaptively allocated at transmitter side. Meanwhile, receiver side, we most suitable multi-input/multi-output decoder selected employed...

We propose to use a super-structured waveplate (called an S-waveplate) for vectorial optical vortex filtering, and experimentally demonstrate the radial Hilbert transform selective edge enhancement. Based on Jones calculus of polarization states Fourier analysis, we calculate analyze point spread function 4-f system including S-waveplate filter having topological charge 1 (TC = 1). Numerical simulations experiments that can be used implement enhancement with analyzer before output plane. The...

A caustic vector vortex optical field is experimentally generated and demonstrated by a caustic-based approach. The desired with arbitrary acceleration trajectories, as well the structured states of polarization (SoP) orders located in different positions cross-section, imposing corresponding spatial phase function field. Our study reveals that spin orbital angular momentum flux distributions (including opposite directions) cross-section can be dynamically managed during propagation...

Abstract The conversion between different polarizations generally requires an optical element or system. We demonstrate, theoretically and experimentally, that the states of polarization (SoP) can be flexibly manipulated in a structured field by itself. During propagation free space, any two orthogonal generated auto‐focus at desired positions purposely designing initial SoP distribution caustic phase cross‐section. experiment arrangement combines caustic‐based approach 4 f This provides way...

We experimentally demonstrate the enhanced atmospheric turbulence resiliency in a 137.8 Gbit/s/mode mode-division multiplexing free-space optical communication link through application of successive interference cancellation digital signal processing algorithm. The is further redundant receive channels link. proof concept demonstration performed using commercially available mode-selective photonic lanterns, commercial transponder, and spatial light modulator based emulator. In this link, 5...

Space-time wave packets (STWPs) are propagation-invariant pulsed beams whose characteristics stem from the tight association between their spatial and temporal degrees of freedom. Until recently, only scalar STWPs have been synthesized in form light sheets. Here we synthesize vector that localized all dimensions by preparing polarization-structured spatiotemporal spectra unveil polarization distribution over STWP volume via time-resolved complex field measurements. Such endowed with...

An extension of the Gerchberg–Saxton algorithm from two dimensions to three is used configure a continuous optical trap geometry. Intensity tailoring in continuous, three-dimensional (3D) volume rather than multiple discrete two-dimensional planes yields flexible 3D holographic tweezers. A numerical simulation and demonstrations beam shaping particle trapping confirm capabilities method.

We propose and experimentally demonstrate an inverse design for the complete shaping of optical focal field with prescribed distribution intensity, phase, polarization. The input that yields desired is obtained through a fast noniterative calculation procedure, in which configured at will then back-propagates to plane. experiments have verified all parameters can be controlled simultaneously independently. Furthermore, using this design, we generate region kind "perfect polarization vortex"...

Free-space optical (FSO) communication has gained much interest due to its capability of providing not only a cost-efficient solution where the fiber is too expensive or difficult deploy but also higher system capacity than radio-frequency competitor. In addition conventional polarization-division multiplexing and coherent detection, combining with mode-division can unlock full potential FSO communications achieve ultra-high spectral efficiency. this paper, we review recent progress...

The intricate optical distortions that occur when light interacts with complex media, such as few- or multi-mode fiber, often appear random in origin and are a fundamental source of error for communication sensing systems. We propose the use orbital angular momentum (OAM) feature extraction to mitigate phase-noise allow intermodal-coupling an effective tool fiber sensing. OAM is achieved by passive all-optical demultiplexing, we demonstrate bend tracking 94.1% accuracy. Conversely, accuracy...

Quantum walks (QW) are of crucial importance in the development quantum information processing algorithms. Recently, several algorithms have been proposed to implement network analysis, particular rank centrality nodes networks represented by graphs. Employing QW ranking is advantageous comparing certain widely used classical (e.g. PageRank) because approach can lift vertex degeneracy However, it challenging a directed graph via QW, since corresponds non-Hermitian Hamiltonian and thus cannot...

Ultra-high-definition (UHD) spatial light modulators (SLMs) enhance the degree of freedom in versatile engineering optical field. Among efforts to explore capability SLMs, enhancing efficiency utilization is an everlasting quest find SLM-based applications. We propose a new method efficiently generate arbitrary vector beams with phase-only UHD-SLM. By enabling UHD-SLM rectangle window work in-line and split-screen manner help polarizing beam splitter, total conversion as high 49% realized....

Atmospheric interaction with light has been an area of fascination for many researchers over the last century. Environmental conditions, such as temperature and wind speed, heavily influence complex rapidly varying optical distortions propagating fields experience. The continuous random phase fluctuations commonly make deciphering exact origins specific aberrations challenging. generation eddies is a major contributor to atmospheric turbulence, similar in geometric structure vortices that...

As spatial light modulators (SLMs) are becoming flexible and the preferred device for steering, SLM's modulation calibration still remains challenging. No pixel-addressable measurement of SLM has yet been practically implemented. We present a quantitative phase method parallel aligned liquid crystal modulator (PAL-SLM) based on Pancharatnam phase-shifting interferometric microscopy. The pixel-wise can be detected from microscopic interference pattern formed two orthogonally polarized waves...

We propose a method to generate vectorial focal field with reconfigurable distributions for both the intensity and polarization state. The three-dimensional volume was configured by modulating phase of incident light. light yielding desired determined based on an iterative scheme involving diffraction calculations fast Fourier transforms. Optical experiments shaping were performed validate feasibility our method. This may have applications in optical tweezers, such as realizing manipulation...

We experimentally demonstrated, for, it is believed, the first time, high-capacity polarization- and mode-division multiplexing free-space optical transmission with adequate strong turbulence resiliency. A compact spatial light modulator-based polarization multi-plane conversion module was employed to emulate turbulent links. By employing advanced successive interference cancellation multiple-input multiple-output decoder redundant receive channels, resiliency significantly improved in a...

Multifocal arrays have been attracting considerable attention recently owing to their potential applications in parallel optical tweezers, single-molecule orientation determination, recording and multifocal multiphoton microscopy. However, the generation of vectorial with a tailorable structure polarization state remains great challenge, reports on hitherto restricted either scalar focal spots without versatility or regular fixed spacing. In this work, we propose specific pseudo-period...