What does Q-factor give measure of? Answer the given question in brief.
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Q-factor is a comprehensive measure for the signal quality of an optical channel that takes into .... This has been shown to give an acceptable qualitative analysis for macro-slip.
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A Q-factor is the comprehensive measure of the signal quality of an optical channel that takes into account the effects on the pulse shape of noise, crosstalk, filtering, and linear / nonlinear distortions, which can not be achieved by spectral analysis alone. It is measured as -
Qdef = fr/ Δf = ωr/ Δω
where fr is the resonant frequency, Δf is the resonance width or the full width at half maximum. ωr is the 2πfr the angular resonant frequency, and Δω is angular half-power bandwidth.
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