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Applications to Optical Communication

  • Bahaa Saleh
Chapter
  • 205 Downloads
Part of the Springer Series in Optical Sciences book series (SSOS, volume 6)

Abstract

A propagating light wave can be used to transfer information from a “transmitter” plane to a “receiver” plane. This can be accomplished by utilizing variations of its intensity, phase, frequency, or polarization. These variations could be functions of time or space or both. The best example is that of light emitted from or scattered by the surface of an object. As the light propagates, it carries information about the object to the viewer in the form of a spatial intensity distribution — an image. Along with the image, the viewer always receives unwanted light coming from other sources — the background. Because of the uncertain nature of the photodetection process, the viewer ends with a noisy replica of the image and the background. Techniques of statistical estimation and detection theory can be used very effectively to reduce the background and combat the uncertainties.

Keywords

Optical Signal Local Oscillator Radar Signal Coherence Time Optical Communication System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1978

Authors and Affiliations

  • Bahaa Saleh
    • 1
  1. 1.Department of Electrical and Computer EngineeringUniversity of Wisconsin-MadisonMadisonUSA

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