Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Beams with Symmetric Loadings01:15

Beams with Symmetric Loadings

236
The moment-area method is an analytical tool used in structural engineering to determine the slope and deflection of beams under various loads. Consider a cantilever with a concentrated load and moment at the free end. The first step is constructing a free-body diagram to calculate the reactions at the fixed end. Next, the bending moment diagram is plotted to visualize how the bending moment varies along the beam's length, focusing on points where the bending moment equals zero.
The M/EI...
236
Beams with Unsymmetric Loadings01:17

Beams with Unsymmetric Loadings

165
Analyzing a supported beam under unsymmetrical loadings is essential in structural engineering to understand how beams respond to varied force distributions. This analysis involves calculating the deflection and identifying points where the slope of the beam is zero, which are crucial for ensuring structural stability and functionality.
The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...
165
Design of Prismatic Beams for Bending01:23

Design of Prismatic Beams for Bending

361
The design of prismatic beams, structural elements with a uniform cross-section, focuses on ensuring safety and structural integrity under load. The design process begins by determining the allowable stress, either from material properties tables, or by dividing the material's ultimate strength by a safety factor. This safety factor is essential for accommodating uncertainties, and varies depending on the material—timber, steel, or concrete—with each having unique strength and...
361
Beams01:30

Beams

1.4K
Beams are integral components of structural engineering and construction, designed to support loads applied at various points along their length. These long, straight members can be classified based on geometry, cross-section, support type, and equilibrium condition.
Based on geometry, beams can be straight, tapered, or curved. Straight beams are the most common type and have a constant cross-section throughout their length. Tapered beams, on the other hand, have a varying cross-section along...
1.4K
Deformation of a Beam under Transverse Loading01:15

Deformation of a Beam under Transverse Loading

421
Understanding beam deflection, particularly for indeterminate beams with overhanging segments and multiple concentrated loads, is crucial for ensuring structural integrity and functionality. The process begins with constructing an accurate free-body diagram, which helps identify the forces and moments acting on the beam. This diagram is vital for visualizing how bending moments vary along the beam's length, influencing its curvature.
The insights from the bending moment diagram extend to...
421
Principal Stresses in a Beam01:11

Principal Stresses in a Beam

414
In prismatic beams subject to arbitrary transverse loading, It is essential to analyze the interaction between shear forces and bending moments in order to understand stress distribution and ensure structural integrity. The highest normal or bending stress occurs at the outer fibers of the beam, decreasing linearly to zero at the neutral axis. In contrast, shear stress peaks at the neutral axis and diminishes toward the outer surfaces.
Analyzing principal stresses is crucial, especially in...
414

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Deep learning as a highly efficient tool for digital signal processing design.

Light, science & applications·2024
Same author

Gas fiber lasers may represent a breakthrough in creating powerful radiation sources in the mid-IR.

Light, science & applications·2022
Same author

Light transport and vortex-supported wave-guiding in micro-structured optical fibres.

Scientific reports·2020
See all related articles

Related Experiment Video

Updated: Sep 4, 2025

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

8.1K

Rising complexity of the OAM beam structure as a way to a higher data capacity.

Andrey Pryamikov1

  • 1Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia. pryamikov@mail.ru.

Light, Science & Applications
|July 13, 2022
PubMed
Summary

Multi-vortex geometric beams overcome the limitations of standard vortex beams for optical communication. These novel beams offer a solution to increase channel capacity by mitigating beam divergence issues associated with high optical angular momentum orders.

More Related Videos

Author Spotlight: Introduction to Active Probe Atomic Force Microscopy with Quattro-Parallel Cantilever Arrays
05:04

Author Spotlight: Introduction to Active Probe Atomic Force Microscopy with Quattro-Parallel Cantilever Arrays

Published on: June 13, 2023

1.7K
Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

10.0K

Related Experiment Videos

Last Updated: Sep 4, 2025

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

8.1K
Author Spotlight: Introduction to Active Probe Atomic Force Microscopy with Quattro-Parallel Cantilever Arrays
05:04

Author Spotlight: Introduction to Active Probe Atomic Force Microscopy with Quattro-Parallel Cantilever Arrays

Published on: June 13, 2023

1.7K
Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

10.0K

Area of Science:

  • Optics and Photonics
  • Optical Communications
  • Information Theory

Background:

  • Standard vortex beams utilize optical angular momentum (OAM) modes to create independent communication channels.
  • High OAM orders in standard vortex beams lead to rapid beam divergence, limiting communication channel capacity.
  • Existing methods struggle to fully exploit the theoretical capacity limits of optical communication channels.

Purpose of the Study:

  • To investigate multi-vortex geometric beams as a potential solution to overcome the divergence limitations of standard vortex beams.
  • To explore the feasibility of enhancing optical communication channel capacity using advanced beam structures.
  • To address the challenge of reaching theoretical capacity limits in free-space optical communication systems.

Main Methods:

  • Theoretical analysis of multi-vortex geometric beam propagation characteristics.
  • Simulation of beam divergence and stability for various OAM orders.
  • Comparison of information transmission capabilities between standard and multi-vortex geometric beams.

Main Results:

  • Multi-vortex geometric beams demonstrate significantly reduced divergence compared to standard vortex beams at high OAM orders.
  • The proposed geometric beam structures maintain beam integrity over longer distances.
  • Preliminary findings suggest a substantial increase in potential data transmission rates.

Conclusions:

  • Multi-vortex geometric beams offer a promising avenue for significantly enhancing optical communication channel capacity.
  • This approach effectively mitigates the divergence problem inherent in high-order OAM vortex beams.
  • Further research into practical implementation of multi-vortex geometric beams is warranted for next-generation optical networks.