What does TPON stand for?

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

Quantum efficiency (η) is defined as

The refractive index is defined as the ratio of ____________.

One polarization maintaining fiber operates at a wavelength of 1.5 µm and has a beat length of 0.6mm. Its modal birefringence is given by _______.

The Nd:YAG LASER is a/an_______.

Dispersion in optical fibers causes distortion in _______.

Light emitting diodes (LED's) are:

Dark spot defects (DSD's) occur in:

The fiber gyroscope is an ______.

SONET is _________.