Zhenshan Yang

Statistical Distributions and Correlations of Modal Dispersion in All Mode-Coupling Regimes

Fengtao Sun, Xinran Zhu, Xiaoxiao Liu, Minghua Cao et autres

While most prior studies on the statistical properties of modal dispersion (MD) in multiple-mode fibers have been primarily focused on the strong mode-coupling regime, in this paper we investigate the statistics of 1st- and 2nd-order MD across the full range of weak-, …

cn (code pays fourni par la source)

Pilot-aided Kalman filter scheme with high robustness for joint equalization of PMD, RSOP, and RCD in ultra-high-speed coherent fiber-optic communications systems

Jiarun Zhao, Zhenshan Yang, Nan Cui, Lixia Xi et autres

We propose a pilot-aided Kalman filter (PA-KF) scheme based on the pilot symbols designed in the OIF 400ZR. The leveraging of pilot symbols simplifies the exhaustive search across all rings into a single-ring determination, which substantially enhances performance and robustness, and to …

cn (code pays fourni par la source)

Statistics of 3rd-order modal dispersion in mode-division multiplexing optical communication systems

Xinran Zhu, Fengtao Sun, Xiaoxiao Liu, Minghua Cao et autres

Based on the group-delay matrix and its frequency derivatives, we study the statistics of modal dispersion (MD) up to 3rd order in randomly perturbed fibers. Particularly, we numerically simulate and analyze the statistical properties of quantities that characterize various aspects of the …

cn (code pays fourni par la source)

Frequency correlation and ergodicity of mode-dependent loss and channel capacity in various mode-coupling regimes

Xiaoxiao Liu, Xinran Zhu, Fengtao Sun, Xia Zhang et autres

Abstract Employing the concatenation rules and a statistical model in the density-matrix formalism, we investigate the frequency diversity of mode-dependent loss (MDL) and channel capacity in multiple-mode fibers from the weak to strong mode-coupling regimes. By in-depth numerical simulation and analysis on …

cn (code pays fourni par la source)

Grating/microcavity arrays on lily petal replicas as dual-functional SERS substrates for rapid monitoring of thiram on fruit surface and malachite green in surface water

Hongjun Wang, Yue Wang, Zhenshan Yang, Huijuan Niu et autres

cn (code pays fourni par la source)

Entangled three-particle states and phonon pairs in an optomechanical system with quadratic mechanical-displacement coupling

Yan Liu, Zhentao Zhang, Zhenshan Yang

We study the generation of three-particle (one photon plus two phonons) states and phonon pairs in a cavity-waveguide system where the optomechanical coupling is quadratic in the mechanical displacement. Both the three-particle state and the phonon pair exhibit quantum entanglement in the …

cn (code pays fourni par la source)

Modal-Dispersion Statistics in Multiple-Mode Fibers from Weak to Strong Coupling Regimes

Fengtao Sun, Xinran Zhu, Xiaoxiao Liu, Zhenshan Yang et autres

We numerically simulate the joint probability distributions of the modal dispersion in a 6-mode fiber and show that the modal-dispersion statistics has qualitatively distinct features in the weak and strong mode-coupling regimes.

cn (code pays fourni par la source)

Highly squeezed states in ring resonators: Beyond the undepleted-pump approximation

Colin Vendromin, Yan Liu, Zhenshan Yang, J. E. Sipe

We present a multimode theory of squeezed-state generation in resonant systems valid for arbitrary pump power and including pump depletion. The Hamiltonian is written in terms of asymptotic-in and -out fields from scattering theory, capable of describing a general interaction. As an …

ca, cn (code pays fourni par la source)

Electron teleportation via multiple Majorana bound states in a superconductor island

Zhen‐Tao Zhang, Bao‐Long Liang, Zhenshan Yang

cn (code pays fourni par la source)

Study on joint effects of modal dispersion, mode-dependent loss and noise by unified density-matrix formalism

Zhenshan Yang, Xiaoxiao Liu, Xia Zhang, Xiaoguang Zhang et autres

We generalize the density-matrix formalism to provide a simple and unified framework for the study of modal dispersion (MD), mode-dependent loss (MDL) and noise in mode-division-multiplexing communication systems. Fundamental concepts and formulas in the original formalism are generalized, while new elements and …

cn (code pays fourni par la source)

Frequency diversity of modal dispersion in mode-division multiplexing systems from strong to weak coupling regimes

Xiaoxiao Liu, Xia Zhang, Yao Guo, Hefu Li et autres

Based on a statistical model applicable to all mode-coupling regimes and a trace covariance function of the group-delay matrix for characterizing the modal-dispersion correlation, we study the frequency diversity of modal dispersion in randomly-perturbed mode-division multiplexing optical communication systems. Particularly, we conduct …

cn (code pays fourni par la source)

Highly Squeezed States in Ring Resonators: Beyond the Undepleted Pump Approximation

Colin Vendromin, Yan Liu, Zhenshan Yang, J. E. Sipe

We present a multimode theory of squeezed state generation in resonant systems valid for arbitrary pump power and including pump depletion. The Hamiltonian is written in terms of asymptotic-in and -out fields from scattering theory, capable of describing a general interaction. As …