OCN-Q3

Which of the following is the primary component responsible for converting electrical signals into optical signals in an optical fiber communication system?

• a) Optical amplifier

• b) Optical modulator

• c) Optical transmitter

• d) Optical receiver

In an optical fiber communication system, what component is used to detect the optical signal at the receiving end?

• a) Optical modulator

• b) Optical receiver

• c) Optical repeater

• d) Optical transmitter

What is the function of a multiplexer in an optical fiber communication system?

• a) Amplify the signal

• b) Convert electrical signals to optical signals

• c) Combine multiple signals into one

• d) Separate combined signals into individual signals

Which of the following is NOT a typical source of signal degradation in optical fiber communication?

• a) Dispersion

• b) Attenuation

• c) Interference

• d) Polarization mode dispersion

In a wavelength-division multiplexing (WDM) system, what is the purpose of using multiple wavelengths?

• a) To reduce signal loss

• b) To increase the data transmission rate

• c) To decrease the cost of transmission

• d) To improve signal modulation