Question

which is the unit of measurement of attenuation in optical fiber​

Answer 1

Unit of the measurement of Attenuation -

Answer - db / Km

Answer 2

The answer is dB/km:

Explanation:

• "In engineering, attenuation is usually measured in units of decibels per unit length of medium (dB/cm, dB/km, etc.)
• and is represented by the attenuation coefficient of the medium in question."
• The reduction in power of a light signal as it is transmitted is known as attenuation.
• Passive media components such as cables, cable splices, and connections induce attenuation.
• The optical fibre's attenuation is caused by two factors: absorption and scattering.
• The absorption is caused by light passing through the glass and being converted to heat by the molecules.
• When the wavelength of light is doubled, the scattering losses are reduced by 2 to the 4th power or 16 times.