Fiber Optics

Fiber optics uses what medium to send information?

• Electrons

• Phonons

• Light

• None of these are correct

What are the four parts of a fiber optic data link?

• Transmitter, optical fiber, connectors/splices, receiver

• Transmitter, optical fiber, data, optical connectors

• Optical fiber, data, optical connectors, receiver

• Optical fiber, optical connectors, optical splices, data

The fiber optic transmitter has which of the following functions?

• Amplifies the optical signal

• Converts the electrical input signal to an optical signal

• Converts the input optical signal to an electrical signal

• Amplifies the output electrical signal

What transmitter uses stimulated emission?

• LED

• LASER

• VCSEL

• APD

Fiber optic systems use what three types of optical sources?

• LEDs, LASERs and VCSELs

• PIN diodes, LASERs and LEDs

• LEDs and LASERs and diodes

• LASERs, diodes and APDs

The fiber optic receiver performs which of the following functions?

• Amplifies the optical signal

• Amplifies the electrical signal

• Converts the electrical signal back into an optical signal

• Converts the optical signal back into an electrical signal

What are the two types of optical detectors?

• LEDs and APDs

• PIN photodiodes and APDs

• APDs and laser diodes

• Laser diodes and PIN photodiodes

Who developed the first optical telegraph?

• Kapany

• Tyndall

• Chappe

• Wheeler

Who demonstrated the concept of “Total Internal Reflection?”

• Kapany

• Tyndall

• Chappe

• Wheeler

Of the following advantages, which one does NOT apply to fiber optics?

• Lower signal attenuation

• Increased bandwidth

• Common ground required

• Reduced size and weight