The reflection coefficient sums up the effects of all the impedence variations within the cable and its end at a certain frequency.Return Lossor V.S.W.Ris usually used instead of reflection coefficient.
The following fomulas can be used for converting among the Returns Loss, Reflection Coefficientand V.S.W.R.
| Reflection Coefficient (Γ) |
ZL - Z0 |
| ZL +Z0 |
R.L. (Return Loss) = - 20 log (|Γ|)
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Fiber Optics 
: 
: + 603 - 89412300 
: + 603 - 89415300 