constraints that (i) the radius of th? A long-haul optical transmission link is to be designed under the design constraints that (i) the radius of the core is to be no smaller than 4 ?m, and (ii) a numerical aperture (NA) of at least 0.12 is needed to focus optical energy into the fiber.
What is the largest possible range of wavelengths for which single-mode operation occurs?
What is the largest possible range of wavelengths for which single-mode operation occurs?