Fibre optics and lasers
The two most revolutionary and important optoelectronic-associated events to have occurred since the mid-1960s are the development of practical fibre optic cables for use in interference-free wide-band communication systems, and the development of reliable long-life low-cost laser units for use in everyday gadgets such as CD-players and bar-code readers. The first half of this chapter explains the basic operating principles and applications of fibre optics; the second half gives similar treatment to LEDs and lasers.
Fibre optics
Introduction
A fibre optic cable can, in very simple terms, be regarded as a hair-thin flexible light pipe or optical waveguide that can efficiently carry modulated or unmodulated light signals ...
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