O'Reilly logo

Engineering Physics by S. Mani Naidu

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

11.4 Step index fibres and graded index fibres—transmission of signals in them

Based on the variation of refractive index of core, optical fibres are divided into: (1) step index and (2) graded index fibres. Again based on the mode of propagation, all these fibres are divided into: (1) single mode and multimode fibres. In all optical fibres, the refractive index of cladding material is uniform. Now, we will see the construction, refractive index of core and cladding with radial distance of fibre, ray propagation and applications of the above optical fibres.

(1) Step index fibre: The refractive index is uniform throughout the core of this fibre. As we go radially in this fibre, the refractive index undergoes a step change at the core-cladding ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required