Light emitting diodes (LED's) are:

Dispersion in optical fibers causes distortion in _______.

What is the relationship between refractive index (n1) of core and refractive index (n2) of cladding for an optical fiber?

When microwave frequency rather than radio frequency subcarriers are employed, the strategy is usually referred to as ______.

What does TPON stand for?

Rayleigh scattering is a ________.