Electromagnetic spectrum used in optical fiber communication
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Generally, the infrared. Because of the way scattering (more for shorter wavelengths) and absorption (peaked at a couple of infrared frequencies) work in the standard glass fiber optic material, the best wavelengths of light to use are around 1550 nm, 1300 nm, and 850 nm
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Optical fiber communication use the near –infrared spectral band ranging from nominally 770 to 1675 nm. Electromagnetic energy is a combination of electrical and magnetic fields and includes power, radio waves, microwaves, infraredlight, visible light, ultraviolet light, x-rays, and gamma rays.
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