diff options
Diffstat (limited to '3543/CH4')
| -rw-r--r-- | 3543/CH4/EX4.21/EX4_21.png | bin | 0 -> 27773 bytes | |||
| -rw-r--r-- | 3543/CH4/EX4.21/Ex4_21.sce | 19 | ||||
| -rw-r--r-- | 3543/CH4/EX4.22/EX4_22.png | bin | 0 -> 27643 bytes | |||
| -rw-r--r-- | 3543/CH4/EX4.22/Ex4_22.sce | 19 | ||||
| -rw-r--r-- | 3543/CH4/EX4.23/EX4_23.png | bin | 0 -> 27592 bytes | |||
| -rw-r--r-- | 3543/CH4/EX4.23/Ex4_23.sce | 18 |
6 files changed, 56 insertions, 0 deletions
diff --git a/3543/CH4/EX4.21/EX4_21.png b/3543/CH4/EX4.21/EX4_21.png Binary files differnew file mode 100644 index 000000000..7e9543139 --- /dev/null +++ b/3543/CH4/EX4.21/EX4_21.png diff --git a/3543/CH4/EX4.21/Ex4_21.sce b/3543/CH4/EX4.21/Ex4_21.sce new file mode 100644 index 000000000..cfdec8df7 --- /dev/null +++ b/3543/CH4/EX4.21/Ex4_21.sce @@ -0,0 +1,19 @@ +// Example 4.21
+// Calculation of wavelength seperation between longitudinal modes.
+// Page no 486
+
+clc;
+clear;
+close;
+
+//Given data
+lambda=0.85; // Wavelength
+n1=3.6; // Refractive index of GaAs
+L=200*10^-6; // Length of cavity
+
+// Wavelength seperation between longitudinal modes.
+lambda1=((lambda)^2)*(10^-12)/(2*n1*L);
+lambda1=lambda1*10^9;
+
+//Displaying results in the command window
+printf("\n Wavelength seperation (in nm^2) = %0.1f ",lambda1);
diff --git a/3543/CH4/EX4.22/EX4_22.png b/3543/CH4/EX4.22/EX4_22.png Binary files differnew file mode 100644 index 000000000..80d49620e --- /dev/null +++ b/3543/CH4/EX4.22/EX4_22.png diff --git a/3543/CH4/EX4.22/Ex4_22.sce b/3543/CH4/EX4.22/Ex4_22.sce new file mode 100644 index 000000000..6c96b69b2 --- /dev/null +++ b/3543/CH4/EX4.22/Ex4_22.sce @@ -0,0 +1,19 @@ +// Example 4.22
+// Computation of overall external efficiency
+// Page no 486
+
+clc;
+clear;
+close;
+
+//Given data
+eg=1.43; // Bandgap energy
+v=2.5; // Electrical supply Voltage
+nd=0.18; // Optical efficiency of laser diode
+
+// Computation of overall external efficiency
+ne=(nd*eg/v)*100;
+
+//Display result in the command window
+printf("\n Overall external efficiency (percentage)= %0.0f .",ne);
+
diff --git a/3543/CH4/EX4.23/EX4_23.png b/3543/CH4/EX4.23/EX4_23.png Binary files differnew file mode 100644 index 000000000..22d2dddc6 --- /dev/null +++ b/3543/CH4/EX4.23/EX4_23.png diff --git a/3543/CH4/EX4.23/Ex4_23.sce b/3543/CH4/EX4.23/Ex4_23.sce new file mode 100644 index 000000000..157821ccb --- /dev/null +++ b/3543/CH4/EX4.23/Ex4_23.sce @@ -0,0 +1,18 @@ +// Example 4.23
+// Calculation of overall external efficiency of a Laser diode
+// Page no 486
+
+clc;
+clear;
+close;
+
+//Given data
+eg=1.43; // Bandgap energy
+v=2.5; // Voltage applied
+nd=0.30; // Optical efficiency of laser diode
+
+//// Overall external efficiency
+ne=(nd*eg/v)*100;
+
+//Display result in the command window
+printf("\n Overall external efficiency (percentage)= %0.0f .",ne);
|
