Describe the different types of dispersion in an optical fiber 3 а) a 1550 nm b) optical link uses a standard single-mode fiber with dispersion parameter of 12 ps/nm/km (chromatic dispersion), and a laser source with a linewidth of 3 nm. assuming the link carrier is a 5 gbits/s binary signal estimate the maximum link length. (assume the maximum spread is half the (12) time interval between each bit). explain how a bragg grating can be used to compensate for dispersion. c) (10) тоtal 30