Nokia Exam 4A0-205 Topic 3 Question 41 Discussion

Actual exam question for Nokia's 4A0-205 exam

Question #: 41
Topic #: 3

How does a Raman pump work in the 1830 specific implementation?

AThe amplification is done simultaneously for all channels as they enter the board.

BAs the incoming signal power increase, the gain of the amplifier is reduced.

CThe pump light travels in the same direction of the signal, amplifying it while it flows in the fiber towards the following node.

DThe pump light travels in the opposite direction of the signal to be amplified, amplifying it while it arrives from the adjacent node.

Show Suggested Answer

Suggested Answer: D

In Raman amplification, a pump laser is used to excite the Raman-active molecules in the fiber, which then amplifies the signal light as it travels in the opposite direction. In the 1830 specific implementation, the pump laser is typically a high-power laser that is launched into the fiber in the opposite direction to the signal. The pump light interacts with the Raman-active molecules in the fiber, which then amplifies the signal light as it travels in the opposite direction. This allows the Raman pump to provide a gain that increases with distance, which can be used to compensate for the loss of signal power as it travels through the fiber.

by Denise at Sep 15, 2024, 12:23 PM

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Charisse

3 months ago

D) The pump light travels in the opposite direction of the signal to be amplified, amplifying it while it arrives from the adjacent node. Classic case of 'going against the flow' to get the job done. Love it!

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Louvenia

2 months ago

D) The pump light travels in the opposite direction of the signal to be amplified, amplifying it while it arrives from the adjacent node.

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Brinda

2 months ago

B) As the incoming signal power increase, the gain of the amplifier is reduced.

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Ilona

3 months ago

C) The pump light travels in the same direction of the signal, amplifying it while it flows in the fiber towards the following node.

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Sommer

3 months ago

A) The amplification is done simultaneously for all channels as they enter the board. Hmm, that seems a bit too simple. I'm not sure about this one.

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Gianna

3 months ago

C) The pump light travels in the same direction of the signal, amplifying it while it flows in the fiber towards the following node.

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Stefania

3 months ago

B) As the incoming signal power increase, the gain of the amplifier is reduced.

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Darell

3 months ago

A) The amplification is done simultaneously for all channels as they enter the board. Hmm, that seems a bit too simple. I'm not sure about this one.

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Paris

3 months ago

B) As the incoming signal power increase, the gain of the amplifier is reduced. Wait, that doesn't sound right. I think I need to review my notes again.

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Dell

4 months ago

D) The pump light travels in the opposite direction of the signal to be amplified, amplifying it while it arrives from the adjacent node. This is how I remember it from the training.

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Lisandra

3 months ago

D) The pump light travels in the opposite direction of the signal to be amplified, amplifying it while it arrives from the adjacent node.

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Lindsey

3 months ago

C) The pump light travels in the same direction of the signal, amplifying it while it flows in the fiber towards the following node.

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Freeman

3 months ago

A) The amplification is done simultaneously for all channels as they enter the board.

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Geraldine

4 months ago

I disagree, I think the pump light travels in the opposite direction of the signal to be amplified.

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Karma

4 months ago

I believe the correct answer is C. The pump light travels in the same direction as the signal to be amplified.

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Jordan

4 months ago

I think a Raman pump works by amplifying the signal while it flows in the fiber towards the following node.

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Jeannetta

4 months ago

C) The pump light travels in the same direction of the signal, amplifying it while it flows in the fiber towards the following node. Makes the most sense to me.

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