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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Optical networks 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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Optical networks 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 optical networks(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.
Exceptional points(EPs),singularities of non-Hermitian systems,often exhibit exotic behaviors by engineering the balance between the system gain and ***,EPs have been demonstrated to enable unidirectional perfect abso...
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Exceptional points(EPs),singularities of non-Hermitian systems,often exhibit exotic behaviors by engineering the balance between the system gain and ***,EPs have been demonstrated to enable unidirectional perfect absorption/reflection at the visible light spectrum.
Using multiple MEMSes sandwiched between two columns of WSSes, this paper designs a low-loss, nonblocking, and scalable OXC that is suitable for the future SDM optical network with a smaller number of wavelengths per ...
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Advancements in the experimental toolbox of cold atoms have enabled the meticulous control of atomic Bloch oscillation(BO)within optical lattices,thereby enhancing the capabilities of gravity *** work delves into the ...
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Advancements in the experimental toolbox of cold atoms have enabled the meticulous control of atomic Bloch oscillation(BO)within optical lattices,thereby enhancing the capabilities of gravity *** work delves into the impact of thermal effects on Bloch oscillation in 1D accelerated optical lattices aligned with gravity by varying the system's initial temperature,Through the application of Raman cooling,we effec-tively reduce the longitudinal thermal effect,stabilizing the longitudinal coherence length over the timescale of its *** atomic losses over multiple Bloch periods are measured,which are primarily attributed to transverse ***,we identify two distinct inverse scaling behaviors in the oscillation lifetime scaled by the corresponding density with respect to temperatures,implying diverse equilibrium processes within or outside the Bose-Einstein condensate(BEC)*** compe-tition between the system's coherence and atomic density leads to a rela-tively smooth variation in the actual lifetime versus *** find-ings provide valuable insights into the interaction between thermal effects and BO,offering avenues for the refinement of quantum measurement technologies.
We experimentally demonstrate a net 8×250 Gbit/s/λ PAM6 and PAM8 transmission over 200-m standard-125μm-cladding high-density eight-core fiber and low-crosstalk femtosecond laser direct writing fan-in/fan-out d...
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The computational spectropolarimeter is demonstrated for the first time using speckle patterns obtained from a multi-mode fiber, with 100-pm spectral resolution, 30-nm bandwidth and a polarization measurement error of...
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In this paper, optical forward error correction using recirculating frequency shifter is proposed and investigated. The optical and in-the-fly process leads to great potential for low latency and high-speed optical co...
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