Why is 850nm strictly used for multimode fiber, while 1310nm and 1550nm are used for single-mode fiber?
Answers
A850nm travels faster than 1550nm
B1310nm cannot travel through multimode glass
CSingle-mode fiber is opaque to 850nm light
D850nm light sources (LEDs/VCSELs) are cheaper but experience high attenuation, making them suitable only for short multimode runs
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