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

Interference and Diffraction02:18

Interference and Diffraction

Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
Time and frequency -Domain Interpretation of Phase-lag Control01:21

Time and frequency -Domain Interpretation of Phase-lag Control

Phase-lag controllers are widely used in control systems to improve stability and reduce steady-state errors. A dimmer switch controlling the brightness of a light bulb serves as a practical example of phase-lag control, gradually adjusting the bulb's brightness. Mathematically, phase-lag control or low-pass filtering is represented when the factor 'a' is less than 1.
Phase-lag controllers do not place a pole at zero, but instead influence the steady-state error by amplifying any finite,...
Interference: Path Lengths01:10

Interference: Path Lengths

Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
Phase-lead and Phase-lag Controllers01:22

Phase-lead and Phase-lag Controllers

Understanding the working function of different types of controllers can be illustrated with practical analogies, such as adjusting a stereo's volume equalizer. Cranking up the bass involves a phase-lead controller, which functions as a high-pass filter, while increasing the treble uses a phase-lag controller, which acts as a low-pass filter. PD controllers, similar to high-pass filters, enhance the system's response to high-frequency components. PI controllers, akin to low-pass filters, manage...
Interference and Superposition of Waves01:07

Interference and Superposition of Waves

When two waves of the same nature occur in the same region simultaneously, they result in interference. Interference of waves implies that the net effect of the waves is the sum of the individual waves' effects. However, it does not imply that the individual waves affect the propagation of other waves.
Interference occurs in mechanical waves, such as sound waves, waves on a string, and surface water waves. Mechanical waves correspond to the physical displacement of particles. Hence,...

You might also read

Related Articles

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

Sort by
Same author

Topological data analysis approach to time series and shape analysis of dynamical system.

Chaos (Woodbury, N.Y.)·2025
Same author

Electronic implementation dataset to monoparametric control the number of scrolls generated.

Data in brief·2020
Same author

Experimental study of speckle patterns generated by low-coherence semiconductor laser light.

Chaos (Woodbury, N.Y.)·2020
Same author

Antithetic population response to antibiotics in a polybacterial community.

Science advances·2020
Same author

Synchronization of complex networks of identical and nonidentical chaotic systems via model-matching control.

PloS one·2019
Same author

Quantifying the degree of locking in weakly forced stochastic systems.

Physical review. E·2019

Related Experiment Video

Updated: May 26, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Dual-lag synchronization between coupled chaotic lasers due to path-delay interference.

J Tiana-Alsina1, J H Garcia-Lopez, M C Torrent

  • 1Departament de Fisica i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Edifici GAIA, Rambla de Sant Nebridi s∕n, 08222 Terrassa, Spain.

Chaos (Woodbury, N.Y.)
|January 10, 2012
PubMed
Summary
This summary is machine-generated.

Synchronization of chaotic semiconductor lasers is disrupted by dual time delays in coupling paths. This interference degrades signal transmission quality and synchronization effectiveness.

More Related Videos

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
09:10

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Published on: April 24, 2014

Related Experiment Videos

Last Updated: May 26, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
10:52

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
09:10

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Published on: April 24, 2014

Area of Science:

  • Nonlinear Dynamics
  • Laser Physics
  • Optical Communications

Background:

  • Semiconductor lasers exhibit complex dynamics, including chaos, influenced by optical feedback.
  • Laser synchronization is crucial for secure communication and signal processing.
  • Unidirectional coupling with optical feedback can induce chaotic behavior and synchronization.

Purpose of the Study:

  • To experimentally investigate the synchronization dynamics of two unidirectionally coupled semiconductor lasers.
  • To analyze the impact of dual time-delayed coupling paths on synchronization quality.
  • To quantify the degradation of information transmission due to chaotic path-delay interference.

Main Methods:

  • Experimental setup with two semiconductor lasers, one emitter (chaotic) and one receiver (continuous-wave).
  • Unidirectional coupling implemented via two distinct delayed optical paths.
  • Numerical simulations to complement experimental observations and explore parameter space.

Main Results:

  • Observed coexistence of two time lags in the synchronized dynamics due to dual delayed paths.
  • Dual-lag synchronization was found to degrade the average synchronization quality.
  • Information transmission between lasers was hindered by the chaotic path-delay interference.

Conclusions:

  • Dual time-delayed coupling paths in unidirectionally coupled chaotic semiconductor lasers lead to synchronization degradation.
  • The interference from different path delays significantly impacts the effectiveness of laser synchronization.
  • Understanding and mitigating this dual-lag interference is essential for optimizing optical communication systems.