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The loss in signal power as light travels down the fibre is called
EXPLANATION
Network Reference Models , Network Topologies
- Fiber Optic Communication - Attenuation:
- Attenuation: The reduction or loss in optical signal power as light pulses propagate through the optical fiber core over distance, typically measured in decibels per kilometer (dB/km).
- Caused primarily by absorption (material and impurity absorption) and scattering (Rayleigh scattering).
- Other Terms:
- Propagation: The physical transmission and wave motion of light through the fiber.
- Scattering: A physical mechanism contributing to attenuation.
- Conclusion: The loss in signal power is called Attenuation (Option 1).
Correct option: (1) Attenuation
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