What is the frequency band used in fiber optic cables?
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Wavelengths typically range from 800 nm to 1600 nm, but by far the most common wavelengths actually used in fiber optics are 850 nm, 1300 nm, and 1550 nm. Multimode fiber is designed to operate at 850 nm and 1300 nm, while single-mode fiber isoptimized for 1310 nm and 1550 nm.
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- The standard for long distance communication (The C-band) is around 1550nm, which is approximately 193,000GHz. Other systems can use wavelengths up to 1610nm (186,000GHz) and others wavelengths down to 850nm (350,000GHz)
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