Special Issue "High Power Pulse Propagation in Optical Fibers"

A special issue of Fibers (ISSN 2079-6439).

Deadline for manuscript submissions: closed (30 November 2021) | Viewed by 1923

Special Issue Editor

Dr. Airat Zh. Sakhabutdinov
E-Mail Website
Guest Editor
Department of Radiophotonics and Microwave Technologies, Kazan National Research Technical University named after A.N. Tupolev, 420111 Kazan, Russia
Interests: non-linear Schrödinger equation; coupled non-linear Schrödinger equations; fiber Bragg gratings; address and multicast fiber Bragg gratings; microwave photonics; combined fiber sensors; microwave photonics methods of fiber Bragg gratings interrogation; fiber Bragg gratings sensors arrays; fiber optic sensors; advanced sensor technologies; optical vector analyzers; microwave photonics methods for optical vector analyzers; distributed and quasi-distributed fiber sensors system; fiber optic sensors and combined sensors calibration; mathematical modelling
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Special Issue Information

Dear Colleagues,

Nonlinear optical effects at wave propagation are complex phenomena that can occur in fiber optics, in the atmosphere, in wire, and in any anisotropic medium with nonlinearity. Nonlinearity is the key to introducing novel concepts in various technologies utilizing traveling waves. Problems of electromagnetic wave propagation in nonlinear waveguide structures are intensively investigated for several decades. In fiber optics, for example, the problem of the delivery of high-power optic pulses with the required parameters to the destination point appears straight at the beginning of their practical usage. The nonlinear effects can arise due to the Kerr effect, Raman scattering, chromatic dispersion, high wave power, and medium anisotropic, etc.

Phenomena of electromagnetic wave propagation in nonlinear media have original importance and also finds a lot of applications, for example, in plasma physics, microelectronics, optics, and laser technology. There are a lot of interesting nonlinear phenomena in media when an electromagnetic wave propagates, such as self-focusing, defocusing, self-channeling. The spectral and spatial components of light do not affect each other at the linear propagation of light, unlike the nonlinear interaction of light with matter gives rise to the complex coupling between the wave modes. Nonlinear effects degrade signal quality as the launched signal power is increased.

In the last decade and, more in particular, in the last few years, this field of research has been gaining a great deal of attention. The nonlinear Schrödinger equation is the basic equation describing the propagation of an intense optical wave in a fiber. Investigation of nonlinear phenomena in a medium leads to solving nonlinear differential equations. In some cases, it is necessary to solve nonlinear boundary eigenvalue problems.

All linear effects occurring during wave propagation have been studied, moreover, for many of them there are analytical solutions, now they are out of interest. Now is the age of studying nonlinear effects. This Special Issue of Fibers intends to cover recent advances in the general field of nonlinear effects related to wave propagation in wire and the optical environment.

Dr. Airat Zh. Sakhabutdinov
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Fibers is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Nonlinear wave effects
  • Nonlinear Schrödinger equation system
  • Nonlinear coupled Schrödinger equation system
  • Kerr effect
  • THz waveguides
  • Optical fiber communication
  • Optical femtoseconds fiber lasers
  • Birefringent fiber
  • Raman scattering 
  • Dispersion in fiber
  • Pulse propagation
  • Solitons

Published Papers (2 papers)

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Research

Article
Algorithm for Solving a System of Coupled Nonlinear Schrödinger Equations by the Split-Step Method to Describe the Evolution of a High-Power Femtosecond Optical Pulse in an Optical Polarization Maintaining Fiber
Fibers 2022, 10(3), 22; https://doi.org/10.3390/fib10030022 - 01 Mar 2022
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Abstract
This article proposes an advanced algorithm for the numerical solution of a coupled nonlinear Schrödinger equations system describing the evolution of a high-power femtosecond optical pulse in a single-mode polarization-maintaining optical fiber. We use the algorithm based on a variant of the split-step [...] Read more.
This article proposes an advanced algorithm for the numerical solution of a coupled nonlinear Schrödinger equations system describing the evolution of a high-power femtosecond optical pulse in a single-mode polarization-maintaining optical fiber. We use the algorithm based on a variant of the split-step method with the Madelung transform to calculate the complex amplitude when executing a nonlinear operator. In contrast to the known solution, the proposed algorithm eliminates the need to numerically solve differential equations directly, concerning the phase of complex amplitude when executing the nonlinear operator. This made it possible, other things being equal, to reduce the computation time by more than four times. Full article
(This article belongs to the Special Issue High Power Pulse Propagation in Optical Fibers)
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Article
Propagation and Transformation of Vortexes in Linear and Nonlinear Radio-Photon Systems
Fibers 2022, 10(1), 4; https://doi.org/10.3390/fib10010004 - 08 Jan 2022
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Abstract
The article is devoted to issues related to the propagation and transformation of vortexes in the optical range of frequency. Within the framework of the traditional and modified model of slowly varying envelope approximation (SVEA), the process of converting vortex beams of the [...] Read more.
The article is devoted to issues related to the propagation and transformation of vortexes in the optical range of frequency. Within the framework of the traditional and modified model of slowly varying envelope approximation (SVEA), the process of converting vortex beams of the optical domain into vortex beams of the terahertz radio range based on nonlinear generation of a difference frequency in a medium with a second-order susceptibility is considered. The modified SVEA splits a slowly varying amplitude into two factors, which makes it possible to more accurately describe the three-wave mixing process. The theoretical substantiation of the rule of vortex beams topological charges conversion is given—the topological charge of the output radio-vortex beam is equal to the difference between the topological charges of the input optical vortex beams. A numerical simulation model of the processes under consideration has been implemented and analyzed. Full article
(This article belongs to the Special Issue High Power Pulse Propagation in Optical Fibers)
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