electro-optical transmitter
Quick Summary
An electro-optical transmitter is a crucial component in optical communication systems. Its primary function is to convert analog or digital information into a modulated beam of light. This light beam then travels through an optical fiber or free space to a receiver.
Two main types of electro-optical transmitters are commonly used: the light-emitting diode (LED) and the semiconductor laser. LEDs are generally less expensive and have longer lifespans, making them suitable for shorter-distance, medium-speed transmissions. Semiconductor lasers, while more costly, offer more efficient light coupling into optical fibers and faster response times, enabling higher data transmission rates over longer distances. These transmitters are essential for the high-speed, broadband telecommunications that are prevalent today.12
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