DFCCIL EC/EE Advance Communication QUIZ - 4

Which mechanism is used by optical fiber for light communication

Estimate cut off wavelength for step index fiber in single mode operation. The core refractive index is 1.48 and core radius is 7.5 μm. The relative index difference is 0.25%.

A step index multimode fiber with a numerical aperture of a 0.20 supports 500 modes at an 850 nm wavelength what is the diameter of its core.

How scattering is related to the wavelength?

Choose the option which is not correct for the dispersion?

For a multimode silica fibre that has a core refractive index n₁ = 1.48 and cladding index n₂ = 1.45, what is the acceptance angle for the fiber?