Talk:Cladding (fiber optics)

Wiki Education Foundation-supported course assignment[edit]

This article was the subject of a Wiki Education Foundation-supported course assignment, between 28 September 2021 and 2 December 2021. Further details are available on the course page. Student editor(s): Sethpedia. Peer reviewers: Ajmellquist, Taylorrnguyenn, ZWpedia.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 19:07, 17 January 2022 (UTC)[reply]

NA[edit]

That NA equation is easy to derive: The NA of the fiber is given by $n\sin \theta$ . To get TIR on the wall, the angle isn't $\theta$ but the angle opposite $\theta$ . The sine of that angle is the cosine of $\theta$ and so is equal to ${\sqrt {1-\sin ^{2}\theta }}$ . Then plug and chug. —Ben FrantzDale (talk) 20:42, 28 November 2011 (UTC)[reply]