From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 3415/CH9/EX9.1/Ex9_1.JPG | Bin 0 -> 48279 bytes
 3415/CH9/EX9.1/Ex9_1.sce |  15 +++++++++++++++
 3415/CH9/EX9.2/Ex9_2.JPG | Bin 0 -> 56352 bytes
 3415/CH9/EX9.2/Ex9_2.sce |  23 +++++++++++++++++++++++
 3415/CH9/EX9.3/Ex9_3.JPG | Bin 0 -> 44882 bytes
 3415/CH9/EX9.3/Ex9_3.sce |  14 ++++++++++++++
 6 files changed, 52 insertions(+)
 create mode 100644 3415/CH9/EX9.1/Ex9_1.JPG
 create mode 100644 3415/CH9/EX9.1/Ex9_1.sce
 create mode 100644 3415/CH9/EX9.2/Ex9_2.JPG
 create mode 100644 3415/CH9/EX9.2/Ex9_2.sce
 create mode 100644 3415/CH9/EX9.3/Ex9_3.JPG
 create mode 100644 3415/CH9/EX9.3/Ex9_3.sce

(limited to '3415/CH9')

diff --git a/3415/CH9/EX9.1/Ex9_1.JPG b/3415/CH9/EX9.1/Ex9_1.JPG
new file mode 100644
index 000000000..d1d204c8b
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diff --git a/3415/CH9/EX9.1/Ex9_1.sce b/3415/CH9/EX9.1/Ex9_1.sce
new file mode 100644
index 000000000..69f19a84e
--- /dev/null
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@@ -0,0 +1,15 @@
+//fiber optic communications by joseph c. palais
+//example 9.1
+//OS=Windows XP sp3
+//Scilab version 5.4.1
+clc
+clear all
+//given
+LE=1//coupler has excess loss of 1dB
+P2byP1=(10^(-LE/10))/2//since P2/P1 is equal to P3/p1 since spliting ratio is 1:1
+Ltap=-10*log10(P2byP1)//Taploss in dB
+Lthp=-10*log10(P2byP1)//throughput Loss in dB
+Ltap1=Ltap-LE//excess loss of 1 dB
+Lthp2=Lthp-LE//excess loss of 1dB
+mprintf('\nThe portion of the input power reaching output for splitting ratio 1:1 is =%f',P2byP1)
+
diff --git a/3415/CH9/EX9.2/Ex9_2.JPG b/3415/CH9/EX9.2/Ex9_2.JPG
new file mode 100644
index 000000000..24cb2f494
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diff --git a/3415/CH9/EX9.2/Ex9_2.sce b/3415/CH9/EX9.2/Ex9_2.sce
new file mode 100644
index 000000000..ebc6899fb
--- /dev/null
+++ b/3415/CH9/EX9.2/Ex9_2.sce
@@ -0,0 +1,23 @@
+//fiber optic communications by joseph c. palais
+//example 9.2
+//OS=Windows XP sp3
+//Scilab version 5.4.1
+clc
+clear all
+//given
+terminals_in=10//initial terminals
+terminals_ex=11//extended terminals
+S_ratio=9//splitting ratio
+ELT=1//excess losss tee coupler in dB
+connector_loss=1//connector loss in dB
+//to find
+P2byP1=10^-0.1*0.9//P2/P1 for spliting ratio 9:1
+lthp=-10*log10(P2byP1)//through loss loss for a 9:1 coupler having 1dB of excess loss
+tee_adlos=lthp+2//loss of one directional coupler plus the loss of two connectors
+star_adlos1= -10*log10(1/terminals_in)//Loss for star network with 10 terminals in dB
+star_adlos2= -10*log10(1/terminals_ex)//Loss for star network with 11 terminals in dB
+d2=star_adlos2 - star_adlos1//Change in loss with change in no. of terminals from 10-11
+mprintf('Throughput losses for a 9:1 coupler having 1dB of excess loss =%fdB',lthp)
+mprintf('\nAdded losses for star with 10 terminals =%fdB',star_adlos1)
+mprintf('\nAdded losses for star with 11 terminals =%fdB',star_adlos2)
+mprintf('\nDifference in star added losses=%fdB',d2)
diff --git a/3415/CH9/EX9.3/Ex9_3.JPG b/3415/CH9/EX9.3/Ex9_3.JPG
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index 000000000..afd6031c8
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diff --git a/3415/CH9/EX9.3/Ex9_3.sce b/3415/CH9/EX9.3/Ex9_3.sce
new file mode 100644
index 000000000..1c207cb11
--- /dev/null
+++ b/3415/CH9/EX9.3/Ex9_3.sce
@@ -0,0 +1,14 @@
+//fiber optic communications by joseph c. palais
+//example 9.3
+//OS=Windows XP sp3
+//Scilab version 5.4.1
+//given
+clc;
+clear all;
+n2=1.5//Assuming refractive index of glass fiber
+n1=1//refractive index if air
+R=((n1-n2)/(n1+n2))^2// fraction of light reflected 
+//to find
+LR=-10*log10(R)//Return loss in dB
+mprintf('Return loss=%fdB',LR)
+
-- 
cgit