What type of fiber has the highest modal dispersion?
∙ a. Step-index multimode
∙ b. Graded index multimode
∙ c. Step-index single mode
∙ d. Graded index mode
∙ a. Step-index multimode
∙ b. Graded index multimode
∙ c. Step-index single mode
∙ d. Graded index mode