What are mode fibers?

Some articles on fiber, fibers:

Fiber Optic
... An optical fiber (or optical fibre) is a flexible, transparent fiber made of glass (silica) or plastic, slightly thicker than a human hair ... as a waveguide, or “light pipe”, to transmit light between the two ends of the fiber ... concerned with the design and application of optical fibers is known as fiber optics ...

Famous quotes containing the word mode:

    I cannot believe that our factory system is the best mode by which men may get clothing. The condition of the operatives is becoming every day more like that of the English; and it cannot be wondered at, since, as far as I have heard or observed, the principal object is, not that mankind may be well and honestly clad, but, unquestionably, that the corporations may be enriched.
    Henry David Thoreau (1817–1862)