The light pulses aren't just fading; they are spreading out. Like runners in a marathon who start together but finish miles apart, the different "modes" of light are arriving at different times. The sharp "1s" and "0s" of the digital world are blurring into a grey smear.

Optical Communication Systems (Optoelectronics): Gowar, John

: Exploration of link power budgets, receiver design, and the limitations imposed by noise and dispersion on overall data rates. Accessing the Work