Fiber optic cables need repeaters to boost weak signals over long distances, ensuring reliable data transmission. Signal loss occurs due to attenuation, dispersion, and physical factors like bending, which can degrade data quality. DM spectrum with uniform gain for all wavelengths. The main objective is to increase the spacing between the repeaters and hence reduce the number of repeaters and find the optimum transmitting power and reduce the non-linearities such as Four Wave Mixing an infrared light pulse through an optical. Fiber optic cables rely on repeaters because light signals weaken and spread out as they travel long distances, a problem known as signal loss. Just like your voice fades and blurs when you shout across a field, light pulses in fiber optics lose strength and clarity. By boosting the. An optical communications repeater is used in a fiber-optic communications system to regenerate an optical signal. However, the way they achieve this is radically different. The farther it travels, the more its.