From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001
From: prashantsinalkar
Date: Tue, 10 Oct 2017 12:27:19 +0530
Subject: initial commit / add all books

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+// Example no.5.7
+// To find the peak current if (a) LO power = 10 dBm, (b) LO power = −10 dBm for the balanced receiver
+// Page no.234
+
+clc;
+clear;
+
+// Given data
+L=100;                                            // Length of fiber
+loss=0.2*L;                                       // Total fiber loss
+PtdBm=12;                                         // The peak power of the signal at the transmitter
+R=0.9;                                            // Responsivity in A/W
+PrdBm=PtdBm-loss;                                 // The power at the receiver
+
+// (a) the peak current LO power = 10 dBm
+PLO1dBm=10;                                       // Power at local oscillator in dBm
+PLO1=10^(0.1*PLO1dBm);                            // Power at local oscillator in mW
+Pr=10^(0.1*PrdBm);                                // Power at receiver in mW
+Id1=2*R*sqrt(Pr*PLO1);                            // The peak current LO power = 10 dBm
+
+// Display result on command window
+printf('\n The peak current for LO power 10 dBm = %0.4f mA',Id1)
+
+// (b) the peak current LO power = -10 dBm
+PLO2dBm=-10;                                      // Power at local oscillator in dBm
+PLO2=10^(0.1*PLO2dBm);                            // Power at local oscillator in mW
+Id2=2*R*sqrt(Pr*PLO2);                            // The peak current LO power = -10 dBm
+
+// Display result on command window
+printf('\n The peak current for LO power -10 dBm = %0.4f mA',Id2)
+
+// comment on the intermodulation cross-talk in a single-branch receiver and the balanced receiver
+printf('\n A single-branch receiver would have a significant amount of cross-talk. In contrast, for a balanced receiver, intermodulation cross-talk is canceled out \n due to the balanced detection.') 
-- 
cgit