Difference between physical reach and logical reach of fibre optic

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Physical reach in fiber optics refers to the maximum distance light can travel through the fiber before significant signal attenuation occurs. Logical reach, on the other hand, pertains to the effective distance over which data packets can be successfully transmitted without errors, factoring in the technology used for signal regeneration and error correction. Understanding both concepts is crucial for optimizing fiber-to-the-home internet services, as they impact the overall performance and reliability of the network. The logical reach can often be extended through the use of amplifiers and repeaters, which help maintain signal integrity over longer distances. Clarifying these distinctions is essential for anyone working with fiber optic technology.
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Difference between "physical reach" and "logical reach" of fibre optic

Undergrad physics student here, working with fibre optic cables for my final year project, specifically to do with amplifying signals for fibre-to-the-home internet service.

I understand the physical reach of fibre optics - the light attenuates as it passes along the fibre.

But what is the "logical reach" of the fibre? I understand it is something to do with sending actual packets of information, but not much else.

I have a practically no knowledge of data transmission, and a basic knowledge of photonics. Any help is appreciated.
 
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