Chapter 13: Problem 30
A step index optical fiber is known to be single mode at wavelengths \(\lambda>1.2 \mu \mathrm{m}\). Another fiber is to be fabricated from the same materials, but it is to be single mode at wavelengths \(\lambda>0.63 \mu \mathrm{m} .\) By what percentage must the core radius of the new fiber differ from the old one, and should it be larger or smaller?
Short Answer
Step by step solution
Key Concepts
These are the key concepts you need to understand to accurately answer the question.