Optik iletişim refers to the transmission of information using light signals. This method is commonly used in fiber optic cables, where data is sent as pulses of light through thin strands of glass or plastic. The advantages of optical communication include high bandwidth, long-distance transmission, and immunity to electromagnetic interference. In addition to telecommunications, optik iletişim is also utilized in various applications such as medical imaging and sensors. Technologies like laser and LED play a crucial role in enhancing the efficiency and speed of optical communication systems, making them essential for modern data networks.