Which of the following best describes Four Wave Mixing (FWM)?

Posted by: Pdfprep Category: 4A0-255 Tags: , ,

Which of the following best describes Four Wave Mixing (FWM)?
A . FWM is a linear impairment that produces crosstalk four adjacent wavelengths are used.
B . FWM is a non-linear impairment that produces crosstalk at the sum and difference of two wavelengths.
C . FWM is a non-linear impairment resulting from varying velocities at different frequencies.
D . FWM is a linear impairment resulting from pulses broadening over ultra-longdistances

Answer: A

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