When leveraging fiber optic technology for high-speed data communications, maintaining optical signal integrity during transmission over long distances is essential for ensuring maximum performance. A primary technical characteristic that arises during fiber-based signal transmission is Chromatic Dispersion (CD), a phenomenon that can severely degrade signal quality. In this article, we’ll explore CD including its detrimental effects on signal transmission, along with introducing Dispersion Compensating Fiber (DCF), a special type of optical fiber designed to mitigate CD effects and successfully overcome this challenge.