Glossary
Tunable Laser Source
85
Telcordia
Organization that contains much of the former Bell labs. It
specializes in telephone network technology, standards and
interfaces.
V
volt
VA
volt-ampere
W
watt
waveguide dispersion
An important constituent of chromatic dispersion in optical
fibers. It is determined by the fiber cladding/core geometry
and refractive index profile.
wavelength
For monochromatic light, the distance between two
successive peaks (or troughs) of the sinusoidally-varying
electric-field amplitude. Note that, unlike frequency, the
wavelength of light is inversely proportional to the refractive
index of the medium through which it propagates. It is for
this reason that accurate wavelength measurements are
generally specified as being determined in “air” or in
“vacuum”.
WDM
Wavelength division multiplexing. A technique whereby two
or more carrier wavelengths are transmitted over one
optical fiber.
XT
Crosstalk
λ
lambda. Greek letter used to denote wavelength.
µ
Abbreviation for micro, which indicates 10
-6
units.
ν
nu. Greek letter used to denote frequency. Traditionally, the
physics community uses “
ν
” to denote frequency whereas
the engineering community uses “
f
”.
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