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  1. Safa O. Kasap

Published Online: 15 JUL 2005

DOI: 10.1002/3527600434.eap649

Encyclopedia of Applied Physics

Encyclopedia of Applied Physics

How to Cite

Kasap, S. O. 2005. Optoelectronics. Encyclopedia of Applied Physics. .

Author Information

  1. University of Saskatchewan, Electrical Engineering Department, Saskatoon, Canada

Publication History

  1. Published Online: 15 JUL 2005


It is useful to view today's optoelectronics in terms of various functional categories, most important of which are the generation of light, modulation of light, transmission of light and its connection between devices, amplification of light, switching of light, isolation of light, filtering of light, wavelength multiplexing and demultiplexing of light, and detection of light. The corresponding devices that implement these functions are light emitters (or light sources), modulators, waveguides and connectors, optical amplifiers, optical switches, optical isolators, optical filters, multiplexers and demultiplexers, and detectors. This introductory article reviews the principles of operation and characteristics of a number of selected devices to provide a general introduction to the field of optoelectronics with an emphasis on optical communications—a major area of application.


  • coherent and incoherent sources;
  • lasers;
  • waveguides;
  • optical fibers;
  • connectors;
  • light modulation;
  • photodetectors;
  • integrated optics;
  • optoelectronic systems;
  • optical communications