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Proceedings Paper

Optical Properties Of The Transmission Medium
Author(s): Felix P. Kapron
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Paper Abstract

From a user viewpoint, the main optical properties of fiber waveguides are reviewed. Attention is given to the more subtle secondary effects that can influence the interpretation of attenuation, dispersion and numerical aperture data given in typical fiber or optical cable specification sheets. Based upon such optical specifications, systems designers can usually do only a first order estimate of how the fiber will perform in their particular application. Numerous references are given, emphasizing recent rather than original contributions. Secondly, the fiber is modelled as an interactive "black box" specified by a minimum number of phenomenological parameters. With transmitter and receiver characteristics held fixed, these parameters are independently varied to calculate their relative importance in systems performance. Multimode and monomode guides are considered, both at conventional and longer wavelengths. It is found that toward increasing transmission distances at lower information rates, the significant improvements in decreasing order of effectiveness are: longer wavelength operation, lower attenuation, higher launched power. At higher rates, mode mixing, an increase in multimode bandwidth and narrowing of source linewidth assume importance.

Paper Details

Date Published: 21 December 1978
PDF: 9 pages
Proc. SPIE 0150, Laser and Fiber Optics Communications, (21 December 1978); doi: 10.1117/12.956708
Show Author Affiliations
Felix P. Kapron, Bell-Northern Research (Canada)


Published in SPIE Proceedings Vol. 0150:
Laser and Fiber Optics Communications
Monte Ross, Editor(s)

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