We theoretically extend the concept of proposed Jones-space optical field recovery to the all-order polarization mode dispersion model for short-reach direct detection optical fiber communications. We numerically veri...
We theoretically extend the concept of proposed Jones-space optical field recovery to the all-order polarization mode dispersion model for short-reach direct detection optical fiber communications. We numerically verify the impact of polarization mode dispersion can be mitigated using linear equalization as coherent detection systems with a 56-GBd dual-polarization QPSK, 16-QAM, and 64-QAM simulation.
We design and demonstrate the first field trial of LLM-powered AI Agent for ADON. Three operation modes of the Agent are proposed for network lifecycle management. The Agent efficiently processes wavelength add/drop a...
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We experimentally demonstrate 405-GBd OOK and 201-GBd PAM-4 signaling in an intensity modulation and direct detection system with a 62-GHz brick-wall bandwidth. Record faster-than-Nyquist ratios of 226.6% and 62.1% ar...
We experimentally demonstrate 405-GBd OOK and 201-GBd PAM-4 signaling in an intensity modulation and direct detection system with a 62-GHz brick-wall bandwidth. Record faster-than-Nyquist ratios of 226.6% and 62.1% are successfully achieved for OOK and PAM-4 modulations, enabled by the proposed gradient-decent noise whitening technique.
Dear editor,Driven by the continuously increasing demand for large capacity data services, the upgrade for high speed passive optical network (PON) system is of great importance. To meet the stringent optical power bu...
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Dear editor,Driven by the continuously increasing demand for large capacity data services, the upgrade for high speed passive optical network (PON) system is of great importance. To meet the stringent optical power budget, current PON standard systems usually use forward error correction (FEC). FEC
Searching for beyond-the-standard-model interactions has been of interest in quantum sensing. Here, we demonstrate a method, both theoretically and experimentally, to search for the spin- and velocity-dependent intera...
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Searching for beyond-the-standard-model interactions has been of interest in quantum sensing. Here, we demonstrate a method, both theoretically and experimentally, to search for the spin- and velocity-dependent interaction with an atomic magnetometer at the centimeter scale. By probing the diffused optically polarized atoms, undesirable effects coming along with the optical pumping, such as light shifts and power-broadening effects, are suppressed, which enables a 1.4 fTrms/Hz1/2 noise floor and the reduced systematic errors of the atomic magnetometer. Our method sets the most stringent laboratory experiment constraints on the coupling strength between electrons and nucleons for the force range λ>0.7 mm at 1σ confidence. The limit is more than 3 orders of magnitude tighter than the previous constraints for the force range between 1 mm∼10 mm, and one order of magnitude tighter for the force range above 10 mm.
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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ISBN:
(数字)9798350379266
ISBN:
(纸本)9798350379273
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 fabrication tolerance.
A distributed dispersion manage system is proposed for mitigating fibre nonlinearities and dispersion in fibre transmission through optimizing accumulated chromatic dispersion (aCD) distribution. 0.7 dB OSNR improveme...
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ISBN:
(数字)9798350379266
ISBN:
(纸本)9798350379273
A distributed dispersion manage system is proposed for mitigating fibre nonlinearities and dispersion in fibre transmission through optimizing accumulated chromatic dispersion (aCD) distribution. 0.7 dB OSNR improvement and 40% overall aCD reduction are simultaneously achieved.
We propose a heuristic-based optimization scheme for reliable optical amplifier reconfiguration process in ADON. In the experiment on a commercial testbed, the scheme prevents a 1.0-dB Q-factor degradation and outperf...
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For implementing end-to-end (E2E) geometric constellation shaping (GCS) scheme with the gradient backpropagation (BP) method, we proposed an artificial shaping parameter setting approach instead of using traditional a...
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Exploring high sensitivity on the measurement of angular rotations is an outstanding challenge in optics and *** this work,we employ the mn-order Hermite-Gaussian(HG) beam in the weak measurement scheme with an angula...
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Exploring high sensitivity on the measurement of angular rotations is an outstanding challenge in optics and *** this work,we employ the mn-order Hermite-Gaussian(HG) beam in the weak measurement scheme with an angular rotation interaction,where the rotation information is taken by another HG mode state completely after the *** taking a projective measurement on the final light beam,the precision of angular rotation is improved by a factor of 2mn+m+*** verification,we perform an optical experiment where the minimum detectable angular rotation improves √15-fold with HG55 mode over that of HG11 mode,and achieves a sub-microradian scale of the measurement *** theoretical framework and experimental results not only provide a more practical and convenient scheme for ultrasensitive measurement of angular rotations but also contribute to a wide range of applications in quantum metrology.
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