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Diffstat (limited to '2780/CH6/EX6.4/Ex6_4.sce')
| -rwxr-xr-x | 2780/CH6/EX6.4/Ex6_4.sce | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/2780/CH6/EX6.4/Ex6_4.sce b/2780/CH6/EX6.4/Ex6_4.sce new file mode 100755 index 000000000..90b091c79 --- /dev/null +++ b/2780/CH6/EX6.4/Ex6_4.sce @@ -0,0 +1,9 @@ +clc
+//to calculate cut-off wavelength of the fibre
+//(2*del)^(1/2)=(2*(n1-n2)/n1)^(1/2)=(0.005)^(1/2)=0.071
+a=5*10^-6 //radius in micrometre
+n1=1.46 //core refractive index in micrometre
+Vc=2.405 //cut-off value of V parametre for single mode operation
+//formula is LAMBDAc=(2*%pi*a*n1*(2*del)^(1/2))/Vc
+lambdac=(2*%pi*a*n1*0.071)/Vc
+disp("cut-off wavelength is LAMBDAc="+string(lambdac)+"metre")
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