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Diffstat (limited to '374/CH9/EX9.2/92.sci')
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1 files changed, 11 insertions, 0 deletions
diff --git a/374/CH9/EX9.2/92.sci b/374/CH9/EX9.2/92.sci new file mode 100644 index 000000000..35f05e329 --- /dev/null +++ b/374/CH9/EX9.2/92.sci @@ -0,0 +1,11 @@ +//chapter 9 example 2// +clc +clear +//length of multimode fibre=L1,measured output optical pwer at far end=Pf,measured output optical power at near end=Pn,fibre cut back to a length=L2,attenuation=adB// +L1=1.5;//in km// +L2=0.002;//in km// +Pn=385.4;//in microwatts// +Pf=50.1;//in micro watts// +k=log(Pn/Pf)*0.43; +adB=(10*k)/(L1-L2); +printf("\n attenuation per km=%f m\n",adB)
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