A) a step index fiber (SIF) of core radius and refractive index are Sum and 1.46 respectively. If the refractive index difference is 0.01, calculate of the numerical aperture and wavelength of signal for single mode fiber? B) a step index fiber of core diameter 50 um and numerical aperture 0.25 carries light of wavelength 850nm. Determine the number of modes if its graident index fiber with parabolic profile?

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Q1) A) a step index fiber (SIF) of core radius and refractive index are Sum and 1.46 respectively. If the refractive index difference is 0.01, calculate of the numerical aperture and wavelength of signal for single mode fiber? B) a step index fiber of core diameter 50 um and numerical aperture 0.25 carries light of wavelength 850nm. Determine the number of modes if its graident index fiber with parabolic profile?

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