Optical Fiber Communication
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Questions and Answers

What is the maximum angle of incident light that allows it to propagate into the fiber core?

  • Refraction angle
  • Total internal reflectance
  • Numerical Aperture (NA)
  • Acceptance angle (correct)

    • What is the purpose of the Information Source in a fiber optic communication system?

  • To convert electrical signals to optical signals
  • To transmit optical pulses
  • To provide input electrical signals (correct)
  • To detect optical signals

    • What is the function of the Optical Source in a fiber optic communication system?

  • To convert electrical signals to optical signals (correct)
  • To convert optical signals to electrical signals
  • To detect optical signals
  • To provide input electrical signals

    • What principle is used by the Optical Fiber to transmit optical pulses?

    <p>Total internal reflection</p> Signup and view all the answers

    What is the purpose of the Optical Detector in a fiber optic communication system?

    <p>To detect and convert optical signals to proportional electrical signals</p> Signup and view all the answers

    What is the final form of the message emerging from the signal processor in a fiber optic communication system?

    <p>Sound wave or visual image</p> Signup and view all the answers

    What is the primary function of the electrical transmitter in a fiber optic communication system?

    <p>To produce electrical signals from information signals</p> Signup and view all the answers

    What is the role of the optical fiber in the communication system?

    <p>To act as a channel and transmit optical pulses</p> Signup and view all the answers

    What is the definition of the numerical aperture (NA) of a fiber?

    <p>The sine of the largest angle of incident light</p> Signup and view all the answers

    What is the purpose of the electrical receiver in a fiber optic communication system?

    <p>To produce the final output of the communication system</p> Signup and view all the answers

    What type of devices can be used as an optical source in a fiber optic communication system?

    <p>Either LEDs or lasers</p> Signup and view all the answers

    What is the acceptance angle of a fiber?

    <p>The maximum angle of incident light that allows it to propagate into the fiber core</p> Signup and view all the answers

    Study Notes

    Acceptance Angle and Numerical Aperture

    • The acceptance angle refers to the maximum angle at which light can enter the fiber core while still being able to propagate through it.
    • Numerical Aperture (NA) is defined as the sine of the largest angle for total internal reflection of an incident ray in the core.

    Information Source

    • The information source provides the initial electrical signals that are to be transmitted via optical fiber to a destination.

    Electrical Transmitter

    • The electrical transmitter is integral to the communication system, converting information signals into electrical signals.

    Optical Source

    • The optical source is responsible for converting electrical signals into optical signals.
    • Common optical sources include Light Emitting Diodes (LEDs) and lasers.

    Optical Fiber

    • Optical fibers serve as waveguides, transmitting optical pulses using the principle of total internal reflection.
    • Made of glass, fibers act as channels between the transmitter and receiver.

    Optical Detector

    • The optical detector's function is to detect incoming optical signals and convert them into proportional electrical signals.

    Electrical Receiver

    • The electrical receiver transforms the electrical signals from the signal processor into sound waves or visual images.
    • These signals become directly usable when connected to computers or other machines through the fiber system.

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    Description

    Test your knowledge on the basics of optical fiber communication, including acceptance angle, numerical aperture, and electrical transmitters. Learn about the components involved in transmitting signals through optical fibers.

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