Huawei
H31-311_V2.5 · Question #368
In a wavelength division system, after a certain distance of transmission, the optical signal-to- noise ratio of the receiving end signal will be reduced to a certain extent. Which is the main reason?
The correct answer is A. Use of EDFA. See the full explanation below for the reasoning.
WDM/OTN Principles
Question
In a wavelength division system, after a certain distance of transmission, the optical signal-to- noise ratio of the receiving end signal will be reduced to a certain extent. Which is the main reason?
Options
- AUse of EDFA
- BUse of Wavelength Combiner
- CNo new optical fiber is used
- DThe optical fiber attenuation is too large
How the community answered
(31 responses)- A81% (25)
- B3% (1)
- C10% (3)
- D6% (2)
Topics
#EDFA#ASE noise#OSNR degradation#amplifier noise
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