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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /848/CH12/EX12.2 | |
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| -rwxr-xr-x | 848/CH12/EX12.2/Example12_2.sce | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/848/CH12/EX12.2/Example12_2.sce b/848/CH12/EX12.2/Example12_2.sce new file mode 100755 index 000000000..f91ffe826 --- /dev/null +++ b/848/CH12/EX12.2/Example12_2.sce @@ -0,0 +1,17 @@ +//clear//
+//Caption: Calculation of Stimulated Brillouin Scattering(SBS) threshold power
+//Example12.2
+//page 433
+clear;
+clc;
+close;
+delta_VB = 20e06; //Brillouin linewidth in Hz
+Aeff = 55e-12; //effective cross-sectional area of the propagating wave in square meter
+Leff = 20e03; //effective length
+b = 2;//polarization factor
+gB = 4e-11;//Brillous gain coefficient m/W
+delta_Vsource = 40e06; //optical source linewidth in Hz
+Pth = 21*(Aeff*b/(gB*Leff))*(1+(delta_Vsource/delta_VB));
+disp(Pth*1e03,'SBS threshold power in milli watts Pth=')
+//Result
+//SBS threshold power in milli watts Pth= 8.6625
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