多选题What three in combination are factors that can cause four-wave mixing in fiber-optic cables？（）Alow optical poweBhigh optical powerCfew optical channelsDmany optical channelsElow chromatic dispersionFhigh chromatic dispersionGtoo much power differential in the optical channels
多选题
What three in combination are factors that can cause four-wave mixing in fiber-optic cables？（）
A
low optical powe
B
high optical power
C
few optical channels
D
many optical channels
E
low chromatic dispersion
F
high chromatic dispersion
G
too much power differential in the optical channels
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