Physics — Fibre Optics
Total internal reflection and numerical aperture.
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\sin\theta_c = \frac{n_2}{n_1}
\text{TIR when } \theta > \theta_c
NA = \sqrt{n_1^2 - n_2^2}
\text{signal guided along the core}
Total internal reflection and numerical aperture.
\sin\theta_c = \frac{n_2}{n_1}
\text{TIR when } \theta > \theta_c
NA = \sqrt{n_1^2 - n_2^2}
\text{signal guided along the core}