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Learning objectives are stated at the beginning of each chapter. These learning objectives serve as a preview of the information you are expected to learn in the chapter. The comprehensive check questions are based on the ob jectives. By successfully completing the NRTC, you indicate that you have met the objectives and have learned the information. The learning objec tives are listed below.

Upon completing this chapter, you should be able to do the following:

  • Describe the term fiber optics.
  • List the parts of a fiber optic data link.
  • Understand the function of each fiber optic data link part.
  • Outline the progress made in the history of fiber optic technology.
  • Describe the trade-offs in fiber properties and component selection in the design of fiber optic systems.
  • List the advantages and the disadvantages of fiber optic systems compared to electrical commu nications systems.


In the other Navy Electricity and Electronics Training Series (NEETS) modules, you learn the basic concepts used in electrical systems. Electrical systems include telephone, radio, cable tele vision (CATV), radar, and satellite links. In the past 30 years, researchers have developed a new technology that offers greater data rates over longer distances at costs lower than copper wire systems. This new technology is fiber optics.

Fiber optics uses light to send information (data). More formally, fiber optics is the branch of optical technology concerned with the transmission of radiant power (light energy) through fibers.

Q.1 Define fiber optics.

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