Which phenomenon does not let light rays escape an optical fiber?

What is signal attenuation in an optical fiber where P1=Input power and P0=Output power

Surface emitter LEDs have high radiance because _______.

Optical bandwidth (OB) relates to electrical bandwidth (EB) when

Metallic impurities are eliminated from optical fiber by:

IEEE 802.5 is a/an ________.

Germanium photodiodes are generally not preferred in the optical fiber system because of _________.

Homodyne detection is used for _______.

Near-field scanning method is used to measure:

Hydrogen absorption by optical fiber causes _______.

FDDI is _______.