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-rw-r--r--3753/CH5/EX5.1/Ex5_1.sce17
-rw-r--r--3753/CH5/EX5.10/Ex5_10.sce14
-rw-r--r--3753/CH5/EX5.11/Ex5_11.sce17
-rw-r--r--3753/CH5/EX5.12/Ex5_12.sce19
-rw-r--r--3753/CH5/EX5.13/Ex5_13.sce16
-rw-r--r--3753/CH5/EX5.14/Ex5_14.sce17
-rw-r--r--3753/CH5/EX5.15/Ex5_15.sce19
-rw-r--r--3753/CH5/EX5.2/Ex5_2.sce16
-rw-r--r--3753/CH5/EX5.3/Ex5_3.sce17
-rw-r--r--3753/CH5/EX5.4/Ex5_4.sce14
-rw-r--r--3753/CH5/EX5.5/Ex5_5.sce17
-rw-r--r--3753/CH5/EX5.6/Ex5_6.sce15
-rw-r--r--3753/CH5/EX5.7/Ex5_7.sce14
-rw-r--r--3753/CH5/EX5.8/Ex5_8.sce15
-rw-r--r--3753/CH5/EX5.9/Ex5_9.sce16
15 files changed, 243 insertions, 0 deletions
diff --git a/3753/CH5/EX5.1/Ex5_1.sce b/3753/CH5/EX5.1/Ex5_1.sce
new file mode 100644
index 000000000..6bb23718f
--- /dev/null
+++ b/3753/CH5/EX5.1/Ex5_1.sce
@@ -0,0 +1,17 @@
+//Example 5.1, Page number 5.28
+
+clc;clear;close
+
+//variable declaration
+n1=1.50 //Core refractive index
+n2=1.47 //Cladding refractive index
+
+//Calculations
+C_a=asin(n2/n1) //Critical angle
+N_a=(n1**2-n2**2)**(1/2) // Numerical Aperture
+A_a=asin(N_a) // degree
+
+//Results
+printf("The Critical angle = %0.1f degrees",(C_a*180/%pi))
+printf("\nThe numerical aperture = %0.2f",N_a)
+printf("\nThe acceptance angle = %0.1f degress",(A_a*180/%pi))
diff --git a/3753/CH5/EX5.10/Ex5_10.sce b/3753/CH5/EX5.10/Ex5_10.sce
new file mode 100644
index 000000000..10e637860
--- /dev/null
+++ b/3753/CH5/EX5.10/Ex5_10.sce
@@ -0,0 +1,14 @@
+//Example 5.10, Page number 5.30
+
+clc;clear;close
+
+// variable declaration
+n1=1.53 //unitless
+delta=0.0196//unitless
+
+// Calculations
+N_a=n1*(2*delta)**(1/2) // numerical aperture
+A_a=asin(N_a)//degree
+// Result
+printf("Numerical aperture = %.3f",N_a)
+printf("\nAcceptance angle = %.2f degrees",(A_a*180/%pi))
diff --git a/3753/CH5/EX5.11/Ex5_11.sce b/3753/CH5/EX5.11/Ex5_11.sce
new file mode 100644
index 000000000..59409b312
--- /dev/null
+++ b/3753/CH5/EX5.11/Ex5_11.sce
@@ -0,0 +1,17 @@
+//Example 5.11, Page number 5.30
+
+clc;clear;close
+
+// variable declaration
+n1=1.480 //unitless
+n2=1.465 //unitless
+V=2.405 //unitless
+lamda=850*10**-9 // in m
+
+// Calculations
+delta=(n1**2-n2**2)/(2*n1**2) //unitless
+a=(V*lamda*10**-9)/(2*%pi*n1*sqrt(2*delta)) // in m
+
+// Results
+printf("delta = %.2f",(delta))
+printf("\nCore radius,a = %.2f micro-m",(a*10**15))
diff --git a/3753/CH5/EX5.12/Ex5_12.sce b/3753/CH5/EX5.12/Ex5_12.sce
new file mode 100644
index 000000000..43703e00f
--- /dev/null
+++ b/3753/CH5/EX5.12/Ex5_12.sce
@@ -0,0 +1,19 @@
+//Example 5.12, Page number 5.31
+
+clc;clear;close
+
+// variable declaration
+n1=1.5 //unitless
+n2=1.49//unitless
+a=25 // in m
+
+// Calculations
+C_a=asin(n2/n1) // Critical angle
+L=2*a*tan(C_a) // in m
+N_r=10**6/L // reflections/m
+
+// Result
+printf("Critical angle = %.2f degrees",(C_a*180/%pi))
+printf("\nFiber length covered in one reflection = %.2f micro-m",(L))
+printf("\nTotal no.of reflections per meter = %.f",(N_r))
+printf("\nSince L=1m, Total dist. travelled by light over one metre of fiber = %.4f m",(1/sin(C_a)))
diff --git a/3753/CH5/EX5.13/Ex5_13.sce b/3753/CH5/EX5.13/Ex5_13.sce
new file mode 100644
index 000000000..53ee26a98
--- /dev/null
+++ b/3753/CH5/EX5.13/Ex5_13.sce
@@ -0,0 +1,16 @@
+//Example 5.13, Page number 5.31
+
+clc;clear;close
+
+// variable declaration
+alpha=1.85//unitless
+lamda=1.3*10**-6 // in m
+a=25*10**-6 // in m
+N_a=0.21 // numerical aperture
+
+// Calculations
+V_n=((2*%pi**2)*a**2*N_a**2)/lamda**2 // V number
+N_m=(alpha/(alpha+2))*V_n //unitless
+
+printf("No.of modes = %.2f =155(approx)",N_m)
+printf("\nTaking the two possible polarizations, Total No.of nodes = %.2f",(N_m*2))
diff --git a/3753/CH5/EX5.14/Ex5_14.sce b/3753/CH5/EX5.14/Ex5_14.sce
new file mode 100644
index 000000000..9cf1347f8
--- /dev/null
+++ b/3753/CH5/EX5.14/Ex5_14.sce
@@ -0,0 +1,17 @@
+//Example 5.14, Page number 5.32
+
+clc;clear;close
+
+// variable declaration
+P_i=100 // input
+P_o=2 // output
+L=10 // in km
+
+// Calculations
+S=(10/L)*log(P_i/P_o) // dB/km
+O=S*L // dB
+
+// Result
+printf("a)Signal attention per unit length = %.1f dB-km^-1",S)
+printf("\nb)Overall signal attenuation = %.f dB",O)
+// Answer given in the textbook is wrong
diff --git a/3753/CH5/EX5.15/Ex5_15.sce b/3753/CH5/EX5.15/Ex5_15.sce
new file mode 100644
index 000000000..9e4a8dfb9
--- /dev/null
+++ b/3753/CH5/EX5.15/Ex5_15.sce
@@ -0,0 +1,19 @@
+//Example 5.15, Page number 5.32
+
+clc;clear;close
+
+// variable declaration
+L=10 // in km
+n1=1.55 //unitless
+delta=0.026//unitless
+C=3*10**5
+
+// Calculations
+delta_T=(L*n1*delta)/C //unitless
+B_W=10/(2*delta_T) // Hz/km
+
+// Result
+printf("Total dispersion = %.1f ns",(delta_T/10**-9))
+printf("\nBandwidth length product = %.2f Hz-km",(B_W/10**5))
+
+// Answer given in the text book is wrong"
diff --git a/3753/CH5/EX5.2/Ex5_2.sce b/3753/CH5/EX5.2/Ex5_2.sce
new file mode 100644
index 000000000..129fe58a0
--- /dev/null
+++ b/3753/CH5/EX5.2/Ex5_2.sce
@@ -0,0 +1,16 @@
+//Example 5.2, Page number 5.28
+
+clc;clear;close
+
+//variable declaration
+d=50 //diameter
+N_a=0.2 //Numerical aperture
+lamda=1 //wavelength
+
+//Calculations
+N=4.9*(((d*10**-6*N_a)/(lamda*10**-6))**2)// unitless
+
+//Result
+printf("N = %.f ",N)
+printf("\nFiber can support: %d guided modes",N)
+printf("\nIn graded index fiber, No.of modes propagated inside the fiber = %.f only",(N/2))
diff --git a/3753/CH5/EX5.3/Ex5_3.sce b/3753/CH5/EX5.3/Ex5_3.sce
new file mode 100644
index 000000000..213df0c1d
--- /dev/null
+++ b/3753/CH5/EX5.3/Ex5_3.sce
@@ -0,0 +1,17 @@
+//Example 5.3, Page number 5.29
+
+clc;clear;close
+
+// variable declaration
+d=50 // diameter
+n1=1.450// unitless
+n2=1.447// unitless
+lamda=1 // wavelength
+
+// Calculations
+N_a=(n1**2-n2**2) // Numerical aperture
+N=4.9*(((d*10**-6*N_a)/(lamda*10**-6))**2)// Numerical aperture
+
+// Results
+printf("Numerical aperture = %.5f",N_a)
+printf("\nNo. of modes that can be propogated = %.f",N)
diff --git a/3753/CH5/EX5.4/Ex5_4.sce b/3753/CH5/EX5.4/Ex5_4.sce
new file mode 100644
index 000000000..e7aaa1a42
--- /dev/null
+++ b/3753/CH5/EX5.4/Ex5_4.sce
@@ -0,0 +1,14 @@
+//Example 5.4, Page number 5.29
+
+
+clc;clear;close
+
+// variable declaration
+delta=0.05 //unitless
+n1=1.46//unitless
+
+// Calculation
+N_a=n1*(2*delta)**(1/2) // Numerical aperture
+
+// Result
+printf("Numerical aperture = %.2f",N_a)
diff --git a/3753/CH5/EX5.5/Ex5_5.sce b/3753/CH5/EX5.5/Ex5_5.sce
new file mode 100644
index 000000000..084842ed0
--- /dev/null
+++ b/3753/CH5/EX5.5/Ex5_5.sce
@@ -0,0 +1,17 @@
+//Example 5.5, Page number 5.29
+
+clc;clear;close
+
+// variable declaration
+a=50 //unitless
+n1=1.53 //unitless
+n2=1.50 //unitless
+lamda=1 // wavelength
+
+// Calculations
+N_a=(n1**2-n2**2) // Numerical aperture
+V=((2*%pi*a)/lamda)*N_a**(1/2) // V number
+
+// Result
+printf("V number = %.2f",V)
+printf("\nmaximum no.of modes propagating through fiber = %.f",V)
diff --git a/3753/CH5/EX5.6/Ex5_6.sce b/3753/CH5/EX5.6/Ex5_6.sce
new file mode 100644
index 000000000..f0c906ce0
--- /dev/null
+++ b/3753/CH5/EX5.6/Ex5_6.sce
@@ -0,0 +1,15 @@
+//Example 5.6, Page number 5.29
+
+clc;clear;close
+
+// variable declaration
+a=100//unitless
+N_a=0.3 // Numerical aperture
+lamda=850 // wavelength
+
+// Calculations
+V_n=(2*(%pi)**2*a**2*10**-12*N_a**2)/lamda**2*10**-18 // number of modes
+// Result
+printf("Number of modes = %d modes",round(V_n/10**-36))
+printf("\nNo.of modes is doubled to account for the two possible polarisations")
+printf("\nTotal No.of modes = %d",round(V_n/10**-36)*2)
diff --git a/3753/CH5/EX5.7/Ex5_7.sce b/3753/CH5/EX5.7/Ex5_7.sce
new file mode 100644
index 000000000..5566aeb17
--- /dev/null
+++ b/3753/CH5/EX5.7/Ex5_7.sce
@@ -0,0 +1,14 @@
+//Example 5.7, Page number 5.29
+
+clc;clear;close
+// variable declaration
+a=5;//unitless
+n1=1.48;//unitless
+delta=0.01;//unitless
+V=25;// V number
+
+// Calculation
+lamda=(%pi*(a*10**-6)*n1*sqrt(2*delta))/V // Cutoff Wavelength
+
+// Result
+printf("Cutoff Wavellength = %.3f micro-m",(lamda*10**7))
diff --git a/3753/CH5/EX5.8/Ex5_8.sce b/3753/CH5/EX5.8/Ex5_8.sce
new file mode 100644
index 000000000..bab31cff6
--- /dev/null
+++ b/3753/CH5/EX5.8/Ex5_8.sce
@@ -0,0 +1,15 @@
+//Example 5.8, Page number 5.30
+
+clc;clear;close
+
+// variable declaration
+V=2.405//unitless
+lamda=1.3 // in m
+N_a=0.05//unitless
+
+// Calculations
+a_max=(V*lamda)/(2*%pi*N_a) // in m
+
+// Result
+printf("Maximum core radius = %.2f micro-m",(a_max))
+
diff --git a/3753/CH5/EX5.9/Ex5_9.sce b/3753/CH5/EX5.9/Ex5_9.sce
new file mode 100644
index 000000000..e49074771
--- /dev/null
+++ b/3753/CH5/EX5.9/Ex5_9.sce
@@ -0,0 +1,16 @@
+//Example 5.9, Page number 5.30
+
+clc;clear;close
+
+// variable declaration
+N_a=0.3 // numerical aperture
+Gamma=45 // coefficient
+
+// Calculations
+theta_a=asin(N_a) // degree
+theta_as=asin((N_a)/cos(Gamma)) // degree
+
+// Results
+printf("Acceptance angle, theta_a = %.2f degrees",(theta_a*180/%pi))
+printf("\nFor skew rays,theta_as = %.2f degrees",(theta_as*180/%pi))
+// Answer given in the textbook is wrong
generated by cgit (git 2.34.1) at 2025-03-08 07:59:29 +0000