We developed a new scheme to suppress the crosstalk between waveguides in a compact half-wavelength pitch silicon waveguide array. In the experimental demonstrations, low crosstalk (CT) of −23 dB is obtained at 1550 n...
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optical vortices with tunable polarization states and topological charges are widely investigated in various physical systems and practical devices for high-capacity optical ***,this kind of structured light beams is ...
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optical vortices with tunable polarization states and topological charges are widely investigated in various physical systems and practical devices for high-capacity optical ***,this kind of structured light beams is usually generated using several polarization and spatial phase devices,which decreases the configurability of optical ***,we have designed a kind of polarized optical multi-vortices generator based on the Stokes-Mueller formalism and cross-phase *** our scheme,multi-channel generation of polarized vortex beams can be realized through a single optical element and a single-input Gaussian *** polarization states and orbital angular momentum of the generated light beams are all-optically ***,the proposed polarized optical multi-vortices generator has also been demonstrated experimentally through one-step holographic recording in an azobenzene liquid-crystalline film and the experimental results agree with theoretical analysis.
The photonic Ising machine,a promising non-von Neumann computational paradigm,offers a feasible way to address com-binatorial optimization *** develop a digital noise injection method for spatial photonic Ising machin...
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The photonic Ising machine,a promising non-von Neumann computational paradigm,offers a feasible way to address com-binatorial optimization *** develop a digital noise injection method for spatial photonic Ising machines based on smoothed analysis,where noise level acts as a parameter that quantifies the smoothness *** experiments with 20736-node Max-Cut problems,we establish a stable performance within a smoothness degree of 0.04 to *** noise injection results in a 24％performance enhancement,showing a 73％improvement over heuristic Sahni-Gonzales(SG)***,to address noise-induced instability concerns,we propose an optoelectronic co-optimization method for a more streamlined smoothing method with strong stability.
We propose a mode-division-multiplexing (MDM) self-homodyne coherent system over weakly-coupled multiple-ring-core 10-mode fibre and experimentally demonstrate single-core 7.2-Tb/s (5.64-Tb/s net rate) transmission wi...
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We achieve the stabilization of the laser power using a cesium Faraday anomalous dispersion optical filter (FADOF). We measured the transmission spectrum of the FADOF. In the transition line of 6s2S1/2 F=4→6p2P3/2 fo...
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A noise-robust radio frequency fingerprint (RFF) extraction and identification scheme is proposed and demonstrated for Wi-Fi device recognition. Specifically, an RFF extractor pre-trained by supervised contrastive lea...
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We demonstrate a dual-frequency (DF) Faraday laser operating on 780 nm using an 87Rb Faraday anomalous dispersion optical filter (FADOF) as the frequency selection element. The frequencies of the two modes correspond ...
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We use the stimulated Raman adiabatic passage (STIRAP) technique to realize a broadband and fabrication-tolerant four-mode (de)multiplexer. The proposed device shows a broad bandwidth of 100 nm and remarkable fabricat...
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Compared with Faraday anomalous dispersion optical filter, the atom optical filter based on the Voigt effect can generate a stronger and more uniform magnetic field with a compact size of the magnet. The transmission ...
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Metasurface is a kind of two-dimensional surface artificial material with periodic subwavelength metal or dielectric structure. It can control the amplitude, phase and polarization of electromagnetic wave by using the...
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