Consider a step index fiber with a sio2-13.5 mol% geo2 core of diameter of 8 um and refractive index of 1.468 and a cladding refractive index of 1.464 (a) calculate the numerical aperture. (b) calculate the maximum acceptance angle, assuming the light ray is launched from air into the fiber core. (c) calculate the wavelength below which the fiber becomes multimode. (d) if the fiber is operated at a free-space wavelength of 1300 nm, calculate the v-number for the fiber. is this a single mode fiber? (e) if the fiber has a chromatic dispersion coefficient 8 ps km1 nm1 at an operating free-space wavelength of 1300 nm, it is 10 km long, anda laser diode source with a fwhm linewidth δλ12 of 2 nm is used, calculate the bit rate x distance product (bl), the optical and electrical bandwidths (assume the light pulses have a gaussian shape)