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The1310nm and 1550nm transmission windows are low loss windows.

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The1310nm and 1550nm transmission windows are low loss windows. In DWDM systems, only the 1560m transfer window is used. Which of the following is the main cause?

A.

The EDFA operating wavelength flatness region is contained in this window.

B.

The nonlinear effect of the B.1550 nm-wavelength region is small.

C.

The 1550nm wavelength region is suitable for long-distance transmission.

D.

None of the above

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