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Diffstat (limited to '3740/CH6/EX6.5/Ex6_5.sce')
| -rw-r--r-- | 3740/CH6/EX6.5/Ex6_5.sce | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/3740/CH6/EX6.5/Ex6_5.sce b/3740/CH6/EX6.5/Ex6_5.sce new file mode 100644 index 000000000..6bbc2874f --- /dev/null +++ b/3740/CH6/EX6.5/Ex6_5.sce @@ -0,0 +1,42 @@ +//Optoelectronics - An Introduction, 2nd Edition by J. Wilson and J.F.B. Hawkes
+//Example 6.5
+//OS=Windows XP sp3
+//Scilab version 5.5.2
+clc;
+clear;
+
+//given - Case(i)
+Lambda=589e-6;//wavelength of the sodium lamp in m
+DeltaNu=5.1e11;//Linewidth of the sodium D lines in Hz
+c=3e8;//Speed of light in air in m/s
+
+mprintf("\n For Sodium Lamp:");
+tc=1/DeltaNu;//Coherence time in s
+mprintf("\n tc = %.1e s",tc);
+
+Lc=tc*c;//length of emitted wave in m
+mprintf("\n Lc = %.1f mm\n",Lc/1e-3);//Division by 10^(-3) to convert into mm
+
+
+//given - Case(ii)
+DeltaNu=1500e6;//Linewidth of He-Ne laser in Hz
+c=3e8;//Speed of light in air in m/s
+
+mprintf("\n For He-Ne Laser with many operating modes:");
+tc=1/DeltaNu;//Coherence time in s
+mprintf("\n tc = %.1e s",tc);
+
+Lc=tc*c;//length of emitted wave in m
+mprintf("\n Lc = %.1f m\n",Lc);
+
+
+//given - Case(iii)
+DeltaNu=1e6;//Linewidth of He-Ne laser in Hz
+c=3e8;//Speed of light in air in m/s
+
+mprintf("\n For He-Ne Laser with single operating mode:");
+tc=1/DeltaNu;//Coherence time in s
+mprintf("\n tc = %.1e s",tc);
+
+Lc=tc*c;//length of emitted wave in m
+mprintf("\n Lc = %.1f m\n",Lc);
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