Huawei
H31-341_V2.5 · Question #352
Which of the following descriptions about OSNR is wrong?
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Question
Which of the following descriptions about OSNR is wrong?
Options
- AAs the number of amplifying boards used on the line increases, noise will continue to accumulate,
- BThe OSNR value of the coherent signal tested by the integral method is not as accurate as the OSNR
- CThe use of FEC technology can reduce the OSNR requirements of the system.
- DThe use of PDM+QPSK/PDM+BPSK modulation can reduce the OSNR requirements of the system.
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