From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 2216/CH7/EX7.6/ex_7_6.sce | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100755 2216/CH7/EX7.6/ex_7_6.sce

(limited to '2216/CH7/EX7.6')

diff --git a/2216/CH7/EX7.6/ex_7_6.sce b/2216/CH7/EX7.6/ex_7_6.sce
new file mode 100755
index 000000000..86cc902cd
--- /dev/null
+++ b/2216/CH7/EX7.6/ex_7_6.sce
@@ -0,0 +1,20 @@
+//Example 7.6: The reduction and Differential quantum efficiency
+clc;
+clear;
+close;
+//given data :
+format('v',5)
+disp("part (a)")
+alfa_eff=1.5;// in mm^-1
+gama=0.8;
+L=0.5;// in mm
+R1=0.35;
+R2=R1;
+R2a=1.0;
+g_th1=(1/gama)*(alfa_eff+(1/(2*L))*log(1/(R1*R2)));
+g_th2=(1/gama)*(alfa_eff+(1/(2*L))*log(1/(R1*R2a)));
+del_gth=g_th1-g_th2;
+disp(del_gth,"The reduction in threshold gain ,(mm^-1) = ")
+disp("part (b)")
+eta_D=(gama*(g_th2-alfa_eff))/(g_th2);
+disp(eta_D,"Differential quantum efficiency =  ")
-- 
cgit