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Proceedings Paper

Transmission Properties Of Optical Fiber Waveguides
Author(s): Donald B. Keck
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Paper Abstract

Guided optical communications using glass optical fiber waveguides is a rapidly growing field. In this paper a discussion of the transmission characteristics of the optical fiber will be given. This will include first a description of rays and modes in the waveguide. Attenuation, long the benchmark for judging fibers has its sources broadly grouped into two categories, absorption and scattering. These will be further subdivided into their contributing factors and discussed, giving a summary of the current status of attenuation reduction. The information carrying capacity is potentially limited by two things, differing group velocity for each mode and finite spectral width of the transmitted light. These will be discussed, showing the effect that material properties and the radial index gradient have on information bandwidth. In the multimode waveguide energy may be transferred between modes during transmission. This can be beneficial by causing the information capacity to decrease only as the (fiber length)12 rather than directly as the fiber length as in the case of no mode coupling. It can also be detrimental since there is an additional attenuation associated with mode coupling. This effect will have an impact on fiber parameters as well as on fiber packaging and will be discussed.

Paper Details

Date Published: 6 November 1975
PDF: 6 pages
Proc. SPIE 0063, Guided Optical Communications, (6 November 1975); doi: 10.1117/12.954465
Show Author Affiliations
Donald B. Keck, Corning Glass Works (United States)

Published in SPIE Proceedings Vol. 0063:
Guided Optical Communications
Frank L. Thiel, Editor(s)

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