一道有关光学的计算题The refractive index of core and cladding for a 1km length single mode fiber is 1.47 and 1.45 respectively.The time taken for the light to travel in this fiber is
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![一道有关光学的计算题The refractive index of core and cladding for a 1km length single mode fiber is 1.47 and 1.45 respectively.The time taken for the light to travel in this fiber is](/uploads/image/z/4654490-50-0.jpg?t=%E4%B8%80%E9%81%93%E6%9C%89%E5%85%B3%E5%85%89%E5%AD%A6%E7%9A%84%E8%AE%A1%E7%AE%97%E9%A2%98The+refractive+index+of+core+and+cladding+for+a+1km+length+single+mode+fiber+is+1.47+and+1.45+respectively.The+time+taken+for+the+light+to+travel+in+this+fiber+is)
一道有关光学的计算题The refractive index of core and cladding for a 1km length single mode fiber is 1.47 and 1.45 respectively.The time taken for the light to travel in this fiber is
一道有关光学的计算题
The refractive index of core and cladding for a 1km length single mode fiber is 1.47 and 1.45 respectively.The time taken for the light to travel in this fiber is
一道有关光学的计算题The refractive index of core and cladding for a 1km length single mode fiber is 1.47 and 1.45 respectively.The time taken for the light to travel in this fiber is
alright,i'm a little drunk now,but i can still answer your question:
internal total reflection condition:
n1sin p=n2 sin pi/2 ===> sin p=0.98639455782312925170068027210884
total time = (L/sin p) /(c/n2) =(1000/0.98639455782312925170068027210884)/(299792458/1.45)=4.9033921994128363799714010012292e-6