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//clear//
//Caption:Program to find Relative Intensity Noise (RIN)
//Example9.1
//page 320
clear;
clc;
close;
IB_Ith = [1.3,1.4,1.5,1.6];//ratio between bias current and threshold current
f = 100e06; //frequency = 100MHz
RIN = ((IB_Ith-1)^-3)/f;
RIN_dB = 20*log10(RIN);
disp(RIN_dB,'Relative Intensity Noise(RIN) in dB/Hz RIN_dB =')
//Result
//Relative Intensity Noise(RIN) in dB/Hz RIN_dB =
// - 128.62728 - 136.1236 - 141.9382 - 146.68908
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