What is opetical Fibre link budget

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Optical fibre link budget is the calculation of the total loss and gain of an optical fibre link.

It is used to determine the maximum distance between two points that can be connected by an optical fibre link.
It takes into account the transmitter power, receiver sensitivity, fibre attenuation, splice and connector losses, and other factors.
The link budget is usually expressed in decibels (dB) and is used to ensure that the signal strength is sufficient for reliable communication.
For example, if the link budget is calculated to be 20 dB, the maximum distance between the two points would be approximately 20 km.

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