Advertisement

Graded-Index Waveguides

  • Ajoy K. Ghatak
  • K. Thyagarajan
Part of the Optical Physics and Engineering book series (OPEG)

Abstract

One of the most exciting applications of a laser lies in the field of communication. Due to the extremely high frequency of the laser light (~ 1015 Hz), the information-carrying capacity of such a beam is orders of magnitude greater than that of radio waves and microwaves. The concept of communication using light beams is old, but due to the absence of a powerful, coherent and monochromatic beam of light, it could not be put into practice. Unlike radio waves, one cannot transmit information using light beams through the atmosphere, due to attenuation and scattering caused by rain, dust, clouds, etc. Hence one requires a medium through which one can transmit information-carrying light beams without much distortion and attenuation. Fibers made of glass form such a medium and can be used as waveguides for optical beams.

Keywords

Gaussian Beam Mode Conversion Entrance Aperture Scalar Wave Equation Incident Gaussian Beam 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Plenum Press, New York 1978

Authors and Affiliations

  • Ajoy K. Ghatak
    • 1
  • K. Thyagarajan
    • 1
  1. 1.Indian Institute of TechnologyNew DelhiIndia

Personalised recommendations