Increase in attenuation of the fiber in the region of the
wavelength of 1383 nm caused by hydroxyl ion impurities
in the glass.

A dielectric or conductive medium
in which electromagnetic waves can propagate.

Typical type of dispersion in a singlemode fiber.
Is caused by the wavelength dependence of the light
distribution of the fundamental mode on the core
and cladding glass.

Spatial period of a flat wave, i.e. the length of one complete
oscillation. In optical communications, the wavelengths
used are in the range from 650 nm to 1625 nm.
Velocity of light (in the particular medium) divided
by the frequency.

Method for increasing the transmission capacity
of a fiber by simultaneously transmitting different
light wavelengths.