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.
Flexible coherent passive optical network (PON) is recognized as an advanced capacity optimization strategy for beyond 100G PON due to its flexibility and adaptability, which are pivotal for the evolution of high-capa...
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We propose and experimentally demonstrate an efficient equalization-enhanced phase noise compensation scheme for long-haul coherent transmission. The distance is extended by 1780km and 470km for 788.4-Gb/s/λ and 968....
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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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A secure OFDM data communication scheme is proposed for wireless or optical networks, where a 200Kbps data transmission integrated with 50Kbps physical-layer key distribution is demonstrated using non-orthogonal multi...
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A dual-comb FMCW Lidar with coherent comb stitching (CCS) technique is firstly demonstrated. CCS can simultaneously achieve 65 GHz high frequency sweeping range, millimeter-level ranging resolution and 100 kHz high vo...
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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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The active optical clock (AOC) takes advantage of the narrowed linewidth and cavity pulling suppression of the bad cavity laser, making it a candidate for the next generation of optical clock. We propose a new experim...
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