Common Light Source Devices in Fiber Optic Communication
Fiber-optic communication systems require a light source to generate the signal that the fiber transmits. Some inexpensive short-distance systems use LEDs that emit visible light, but most systems carry. The workhorse behind modern telecommunications is infrared light , specifically with wavelengths between 1310 nm and 1550 nm . The transmitter takes an electrical input and converts it to an optical output from a laser diode or LED.
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