Oct 12, 2025
All-optical logic gates with nonlinear optical (NLO) properties of three-coupled identical waveguides have been proposed and designed theoretically in a unique semiconductor-based
Aug 30, 2025
This study investigates the significant impact of cross-phase modulation (XPM) on modulation instability (MI) in a nonlinear tunnel-coupled oppositely directed coupler, with a focus on
May 12, 2026
Here we experimentally create a temporal waveguide doublet by introducing truncation boundaries in a synthetic temporal lattice, which is constructed using two fiber loops connected by a
Feb 08, 2026
We have explored the significance of couplers in signal-processing applications because they control the intensity of various frequency modes. Optical couplers can be used to develop
Mar 07, 2026
Optical multistability comprising three optical states is shown in a compact photonic crystal cavity, enabled by the near-exceptional coupling of high-quality-factor modes.
Feb 15, 2026
This study investigates the highly dispersive solitons in optical twin-core couplers with the Kerr law of nonlinear refractive index using the improved modified extended tanh function method.
Mar 17, 2026
Here, we validate these predictions in an optics context using a mode-locked fibre laser. We confirm that the coupling is universal and approximately satisfies a general scaling law.
Aug 21, 2025
Mode coupling is a concept for describing and calculating light propagation in certain situations, e.g. involving nonlinear interactions.
Jul 17, 2025
In recent years, many findings have been employed to solve such coupled integrable nonlinear models. Hamdy et al explored solitons in magneto
Sep 06, 2025
By validating long-standing theoretical predictions, we confirm the physical and mathematical relationships of previous experimental observations across a wide variety of perturbed
Oct 21, 2025
We model the nonlinear propagation of optical signals in an MMF system under various coupling regimes, and analyze the computation time for SSFM and compact schemes (CS) as a
Feb 23, 2026
Multimode nonlinear optical physics is full of emergent phenomena, including robust spatial attractors, multimode wave instabilities, and conservative and dissipative multimode solitons.
Oct 01, 2025
several reasons. The progress in the optics communication and quantum computing networks requires data transmission . This simple device has potential applications in all-optical switching [3, 4].
Jan 31, 2026
We propose an all-optical switch based on an asymmetric directional coupler structure with epsilon-near-zero (ENZ) layer. The nonlinear optical properties the of ENZ layer are analyzed by
Apr 02, 2026
Linear and nonlinear directional couplers are currently used in fiber optics communications. They may also play a role in multiphoton approaches to quantum information
Jun 07, 2026
These results advance the understanding and modeling of nonlinear processes in coupled microresonators and their applications in coherent computing and quantum photon-ics.
Jan 11, 2026
The ultrafast and large enhancement of the optical nonlinar coefficients in this work paves the way for exploring strong coupling effects on various third-order nonlinear optical phenomena and
Aug 21, 2025
This paper obtains bright, dark, and singular optical solitons in nonlinear directional couplers with optical metamaterials. The mathematical principle of undetermined coefficients is applied to extract these
May 01, 2026
The governing equations are the modified coupled nonlinear Schrödinger equations, to which we add the higher-order nonlinearity terms and coupling terms. This equation is further
Jul 02, 2026
To illustrate the usefulness of TCMT as well as the systematic way to utilize this perturbative theory to model and predict the responses of nonlinear optical systems, the remainder of this paper is
May 07, 2026
Using a variational method, we have developed an approximate model of the dynamics of soliton coupling described by coupled nonlinear Schr"odinger equations. The results are analytical
Apr 29, 2026
Overview ZnGeP 2 (Zinc Germanium Phosphide), commonly referred to as ZGP, is a high-performance, bulk single-crystal nonlinear optical material engineered for efficient frequency conversion in the mid
Dec 11, 2025
The operation of a nonlinear coupler switch capable of substantially complete all-optical switching at subpicosecond rates with no light-induced
Aug 18, 2025
This work predicts the soliton dynamics and parameter discovery for the coupled nonlinear Schrödinger equations in asymmetric fiber couplers. Using exact one- and two-soliton solutions
Dec 10, 2025
In this paper, we focus on the dynamical behavior and modulation instability of optical solitons in nonlinear directional couplers. The expressions of single soliton solutions are derived, and
Nov 28, 2025
Nonlinear effects in microresonators are efficient building blocks for all-optical computing and telecom systems. With the latest advances in microfabrication, coupled microresonators are
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