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Related Concept Videos

Transmission Line Design Considerations01:23

Transmission Line Design Considerations

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...

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Related Experiment Video

Updated: Jun 20, 2026

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

Dimensioning an optical-fiber spread-spectrum multiple-access communication system.

P Healey

    Optics Letters
    |September 11, 2009
    PubMed
    Summary

    This study details the dimensioning of optical-fiber spread-spectrum communication systems. It leverages the wide spectrum of semiconductor lasers and LEDs for signal spreading, enhancing multiple-access capabilities.

    Area of Science:

    • Optoelectronics
    • Telecommunications Engineering

    Background:

    • Optical fiber communication systems offer high bandwidth potential.
    • Spread-spectrum techniques can improve signal security and multiple access in communication networks.

    Purpose of the Study:

    • To investigate the dimensioning of optical-fiber-based spread-spectrum multiple-access (SSMA) systems.
    • To explore the use of semiconductor laser and LED spectra as the spreading function in SSMA systems.

    Main Methods:

    • Analysis of system parameters for optical-fiber SSMA.
    • Utilizing the broad spectral characteristics of semiconductor lasers and LEDs for signal spreading.

    Main Results:

    • The study provides insights into the design and scaling of optical SSMA systems.

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    Last Updated: Jun 20, 2026

    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

    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
    09:03

    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

    Published on: January 7, 2019

  • Demonstrates the feasibility of using light sources' inherent spectra for spreading in communication.

    • Conclusions:

    • Semiconductor lasers and LEDs can effectively serve as the spreading function in optical-fiber SSMA systems.
    • Proper dimensioning is crucial for optimizing the performance of such communication systems.