Light scattering from an optical fiber with an elliptical core. Scatte
ring of light from an elliptical core (e-core) fiber was theoretically
analyzed and measured. The fiber parameters were recovered from the m
easured scattering patterns. The fiber size (axes of the ellipse) can
be determined to the order of a quarter of a wavelength, and the refra
ctive index of fibers can be recovered with an uncertainty to the thir
d decimal place.