Both the 1310nm and 1550nm transmission windows are low-loss windows. In the DWDM system, only the 1550nm transmission window is used. Which of the following options is the main reason?
A.
EDFA operating wavelength flat region includes this window
B.
Small nonlinear effects in the 1550nm wavelength region
C.
1550nm wavelength region is suitable for long distance transmission
Chosen Answer:
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