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

Clipper Circuit01:18

Clipper Circuit

1.0K
A clipper circuit is a fundamental wave-shaping device that harnesses the unique properties of diodes to alter and control waveform characteristics. This technology is widely used in electronic devices, especially in television and radar communication systems, where it enhances waveform modulation in both transmitters and receivers.
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...
1.0K
Directional Relays01:25

Directional Relays

781
Directional relays, essential for managing unidirectional fault currents, enhance the safety and efficiency of power systems. On power lines equipped with directional relays, faults downstream (to the right) of the current transformer typically cause the fault current to lag the bus voltage by approximately 90 degrees, known as the forward direction. In contrast, upstream (left-side) faults may result in the fault current leading the bus voltage by nearly 90 degrees, termed the reverse...
781
Transmission Line Design Considerations01:23

Transmission Line Design Considerations

807
Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
807
Mesh Analysis for AC Circuits01:12

Mesh Analysis for AC Circuits

787
In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
The process of harmonizing these impedances begins with a clear understanding of the input and output signals. Once these signals are known, the...
787
Controller Configurations01:22

Controller Configurations

474
Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
474
Load-frequency control01:28

Load-frequency control

867
Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...
867

You might also read

Related Articles

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

Sort by
Same author

Preparation methodology evaluation of rat pulmonary tissues containing mineral fibers following inhalation exposure to Libby amphibole asbestos.

Journal of occupational medicine and toxicology (London, England)·2025
Same author

Acoustic Sensing Fiber Coupled with Highly Magnetostrictive Ribbon for Small-Scale Magnetic-Field Detection.

Sensors (Basel, Switzerland)·2025
Same author

Fiber-based Miniature Strain Sensor with Fast Response and Low Hysteresis.

Advanced functional materials·2024
Same author

Sub-surface thermal measurement in additive manufacturing via machine learning-enabled high-resolution fiber optic sensing.

Nature communications·2024
Same author

Laser Machined Fiber-based Microprobe: Application in Microscale Electroporation.

Advanced fiber materials·2023
Same author

Optical Fiber Sensors: introduction to the feature issue.

Applied optics·2023

Related Experiment Video

Updated: Apr 22, 2026

Characterization of Anisotropic Leaky Mode Modulators for Holovideo
09:36

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

Published on: March 19, 2016

7.6K

Adaptive control of waveguide modes using a directional coupler.

Peng Lu, Matthew Shipton, Anbo Wang

    Optics Express
    |October 17, 2014
    PubMed
    Summary

    Adaptive optics (AO) enable adaptive control of linearly polarized (LP) modes in two-mode fibers. This all-fiber approach offers quasi-distributed control for multimode networks.

    Area of Science:

    • Optical Engineering
    • Photonics
    • Fiber Optics

    Background:

    • Controlling light propagation in optical fibers is crucial for advanced communication and sensing systems.
    • Multimode fibers support multiple spatial modes, enabling higher data capacity but posing challenges for mode control.
    • Adaptive optics (AO) offer a powerful tool for real-time correction of optical aberrations and mode manipulation.

    Purpose of the Study:

    • To demonstrate adaptive control of linearly polarized (LP) modes in a two-mode fiber using adaptive optics.
    • To investigate the feasibility of using all-fiber devices for quasi-distributed control of waveguide modes in multimode networks.

    Main Methods:

    • Utilized adaptive optics (AO) in conjunction with a directional coupler for mode control.
    • Employed the coupling ratio of the directional coupler as the feedback signal for the AO system.

    More Related Videos

    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
    07:28

    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

    Published on: August 30, 2012

    10.1K
    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

    9.6K

    Related Experiment Videos

    Last Updated: Apr 22, 2026

    Characterization of Anisotropic Leaky Mode Modulators for Holovideo
    09:36

    Characterization of Anisotropic Leaky Mode Modulators for Holovideo

    Published on: March 19, 2016

    7.6K
    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
    07:28

    Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor

    Published on: August 30, 2012

    10.1K
    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

    9.6K
  • Ensured the AO feedback mechanism was independent of the spatial profiles of optical field distributions.

    • Main Results:

    • Successfully demonstrated adaptive control of LP modes within a two-mode fiber.
    • The AO feedback, derived from the directional coupler's coupling ratio, effectively managed mode propagation.
    • Validated the quasi-distributed control capability for waveguide modes in a multimode network.

    Conclusions:

    • Adaptive optics combined with all-fiber directional couplers provide a viable method for controlling waveguide modes.
    • This approach facilitates quasi-distributed mode management in multimode fiber networks.
    • The demonstrated technique holds promise for future optical communication and signal processing applications.