What are the difgerent wavelengths at which optical fibre communication takes place and Which gives the better performance and Why?

Question

Accepted Answer

Optical fibre communication takes place at different wavelengths, with some providing better performance than others.

Optical fibre communication can take place at various wavelengths, including 850 nm, 1310 nm, and 1550 nm.
The 850 nm wavelength is commonly used for short-distance communication, such as within buildings or data centers.
The 1310 nm wavelength is often used for medium-distance communication, such as metropolitan area networks.
The 1550 nm wavelength is typically used for long-distance communication, such as transoceanic cables.
The 1550 nm wavelength offers better performance in terms of lower attenuation and higher signal quality over longer distances.
This wavelength is less affected by dispersion and other impairments, making it ideal for long-haul communication.
However, the choice of wavelength also depends on the specific application and the availability of optical components.
For example, some systems may use a combination of wavelengths to optimize performance and capacity.
Overall, the 1550 nm wavelength is often preferred for long-distance optical fibre communication due to its superior performance.

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