Question

What is a defining quality of step index multimode fiber?

1) Low modal dispersion
2) High modal dispersion
3) Single mode operation
4) d) Large core diameter

Answer 1

A defining quality of step index multimode fiber is large core diameter, resulting in high modal dispersion.

Step-by-step explanation:

A defining quality of step index multimode fiber is large core diameter. In step index multimode fiber, the core diameter is larger compared to single mode fiber, allowing multiple modes of light to propagate through the fiber. This results in high modal dispersion. Modal dispersion refers to the spreading out of light pulses as they travel through the fiber, which can cause distortion and limit the data transmission capacity. Therefore, option 4) Large core diameter is the correct defining quality of step index multimode fiber.