Fiber optics are an important part of our modern internet. In these fibers, two different glasses are used to confine the light by total internal reflection at the critical angle for the interface between the core (ncore =1.497) and the cladding (ncladding =1.421)
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is the largest angle a largest angle a ray will make with respect to the interface of the fiber and experience total internal reflection ![\theta_{max} = 90 - sin^{-1} [\frac{n_{cladding}}{n_{core}} ]](/tpl/images/0698/8649/99a8e.png)
![\theta_{max} = 90 - sin^{-1} [\frac{1.421}{1.497}} ]](/tpl/images/0698/8649/ee9d3.png)
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Fiber optics are an important part of our modern internet. In these fibers, two different glasses ar...
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