The convergence of low-loss optical fiber and semiconductor lasers created a medium that could carry data at the speed of light with minimal loss.
For decades, communication relied on electrical signals through copper. However, copper faces physical limits: it generates heat and loses signal strength over long distances. Photonics - Optical Electronics in Modern Comm.
Introduction to Photonics: Principles and the Most Recent ... - MDPI The convergence of low-loss optical fiber and semiconductor
High-speed Photodetectors at the other end convert the light back into electrical data for computers to process. The Next Frontier: All-Photonic Networks (APN) Photonics - Optical Electronics in Modern Comm.
Semiconductors like gallium arsenide or indium phosphide convert electrical signals into light (photons) using Laser Diodes or LEDs .
Light pulses travel through Optical Fibers , which use thin glass cores to guide signals over thousands of miles.