A reconfigurable optical switch based on mode-folded phase shifter over LNOI is experimentally demonstrated with high switching efficiency of 0.6V·cm Vπ·L. The switching is intrinsically fast with channel n...
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We proposed a mode-switching based reconfigurable optical power splitter with channel number scalability covering 1, 2, 4, and 8 channels, which can be used for versatile MSA-compatible optical interconnects with mini...
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optical frequency combs, characterized by high signal-to-noise ratio and fine time resolution, have made signifi-cant contributions in the field of optical time-frequency transfer towards long distance and high precis...
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We propose on-chip topological transport of quantum frequency comb (10 THz) with frequency entanglement in valley photonic crystals. Our proposal could open new avenues for high-dimensional information processing util...
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The information-carrying programmable metasurfaces have found widespread applications in communication, sensing, and other related areas. However, there is a fundamental but unresolved problem,i.e., the rigorous under...
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The information-carrying programmable metasurfaces have found widespread applications in communication, sensing, and other related areas. However, there is a fundamental but unresolved problem,i.e., the rigorous understanding of the quantization of metasurface coding. Here, we theoretically investigate the performance difference between one-bit and continuous information-encoding metasurfaces. To this end,we derive analytical representations of system responses in various cases(single-input single-output, singleinput multiple-output, and multiple-input multiple-output). We analyze the impact of one-bit coding(in contrast to continuous coding) in terms of the resulting channel cross-talk and reduction of information capacity in various representative scenarios from wireless communication and holography. Our main finding indicates that the one-bit coding yields a satisfactory performance in most practical scenarios; we also show that in many cases there are smart ways to mildly relax optimization constraints in order to reduce the performance gap between the one-bit and continuous coding. We expect that our results can provide theoretical guidance for a large variety of metasurface-assisted information systems for electromagnetic waves and other wave phenomena.
We report on the theoretical and experimental demonstration of non-Hermitian antichiral currents based on a tunable non-Hermitian Hall ladder in the synthetic frequency dimension implemented by two coupled optical rin...
We report on the theoretical and experimental demonstration of non-Hermitian antichiral currents based on a tunable non-Hermitian Hall ladder in the synthetic frequency dimension implemented by two coupled optical rin...
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We build a platform for designing bipartite entangled quantum frequency combs via on-chip Si3N4 microresonators. Our platform supports 12 continuous-variable quantum modes, of which the entanglement degree can be fine...
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We leverage cutting-edge photonic approaches to demonstrate a clone-combs-based self-homodyne WDM digital-analog RoF system for mobile fronthaul. We achieve a 240 GHz (=12λ×20 GHz) aggregated bandwidth with an u...
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opticalnetworks are evolving toward ultrawide bandwidth and autonomous *** this scenario,it is crucial to accurately model and control optical power evolutions(OPEs)through optical amplifiers(OAs),as they directly af...
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opticalnetworks are evolving toward ultrawide bandwidth and autonomous *** this scenario,it is crucial to accurately model and control optical power evolutions(OPEs)through optical amplifiers(OAs),as they directly affect the signal-to-noise ratio and fiber ***,a fundamental contradiction arises between the complex physical phenomena in optical transmission and the required precision in network *** theoretical methods underperform due to ideal assumptions,while data-driven approaches entail exorbitant costs associated with acquiring massive amounts of data to achieve the desired level of *** this work,we propose a Bayesian inference framework(BIF)to construct the digital twin of OAs and control OPE in a data-efficient *** the informative data are collected to balance the exploration and exploitation of the data space,thus enabling efficient autonomous-driving opticalnetworks(ADONs).Simulations and experiments demonstrate that the BIF can reduce the data size for modeling erbium-doped fiber amplifiers by 80%and Raman amplifiers by 60%.Within 30 iterations,the optimal controlling performance can be achieved to realize target signal/gain profiles in links with different types of *** results show that the BIF paves the way to accurately model and control OPE for future ADONs.
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