Which materials are unsuitable for the fabrication of graded index fiber?

Question

Quizplus · Accepted Answer

Mono-crystalline structures are unsuitable for the fabrication of graded index fiber because they do not allow for the gradual change in refractive index that is characteristic of graded index fibers. Graded index fibers typically require materials that can have their refractive index precisely controlled and varied, such as glass or silica-based materials, which can be doped with various substances to achieve the desired refractive index profile. Mono-crystalline structures, on the other hand, have a uniform crystalline arrangement that does not lend itself to this kind of manipulation.

Which Materials Are Unsuitable for the Fabrication of Graded Index