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author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
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committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3710/CH5/EX5.5 | |
parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
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-rw-r--r-- | 3710/CH5/EX5.5/Ex5_5.sce | 24 |
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diff --git a/3710/CH5/EX5.5/Ex5_5.sce b/3710/CH5/EX5.5/Ex5_5.sce new file mode 100644 index 000000000..77ce0a2a5 --- /dev/null +++ b/3710/CH5/EX5.5/Ex5_5.sce @@ -0,0 +1,24 @@ +//Example 5.5, Page Number 209
+//Threshold Current Density
+clc;
+//For GaAs Junction
+l=0.84*(10**-6) //Wavelength in meter
+w=1.45*(10**13) //Linewidth in Hertz
+y=3.5*(10**3) //Loss Coefficient per meter
+n=3.6 //Refractive Index for GaAs
+q=1 //Quantam Efficiency
+le=300*(10**-6)//Length in meter
+d=2*(10**-6) //in metres
+R=0.32 //Reflectance
+c=3*(10**8) //Speed of light in m/s
+e=1.6*(10**-19) //Charge of electron in Coulombs
+
+v=c/l //Frequency
+
+k=y+((1/(2*le))*log1p(1/(R*R)))//k is the threshold gain
+k=fpround(k,0)
+
+J=(8*%pi*w*e*(n**2)*d*k*(v**2))/(c**2)
+J=J*(10**-6)
+mprintf("\tThe Threshold Gain is %d /m\n",k)
+mprintf("\tThe Threshold Current Density is %.2f A/mm square\n",J)
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