Fiber Optics Quiz

What does EDFA stand for?

• Electricity Direct Fiber Amplifier

• Eco-friendly Digital Fiber Amplifier

• Enhanced Digital Fiber Amplifier

• Erbium Doped Fiber Amplifier

Before the invention of optical amplifiers like EDFA, how was the optical signal amplified?

• By reducing the signal frequency

• By increasing the fiber length

• By using a mechanical amplifier

• By converting it to an electrical signal first

What is the process called when the Erbium ions interact with the 1550 NM signal in EDFA?

• Energy Conversion

• Photon Emission

• Stimulated Emission

• Signal Amplification

What determines the amplification window of an EDFA?

• The length of the optical fiber

• The color of the optical signal

• The properties of the dopant ions

• The type of connectors used

Which component is NOT part of an EDFA based on the text?

• Optical Fiber

• WDM

• Microprocessor

• Isolators

What is the purpose of the 918 NM pump laser in EDFA?

• To filter out unwanted wavelengths

• To excite the Erbium ions

• To convert the signal to electrical

• To amplify the signal directly

What started the fiber optic revolution according to the text?

• The invention of EDFA

• The reduction in fiber losses

• The use of copper cables

• The increase in connector efficiency

What is the range of wavelengths for which an EDFA is a usable gain called?

• Gain Window

• Photon Band

• Signal Range

• Amplification Spectrum