Abstract

Spherical coordinate angular distributions (θ, φ) of scattered light are measured for ZrF₄-based fluoride fibers. Rayleigh and non-Rayleigh scattering are observed. The scattering loss spectrum for fibers is characterized by α_s = Aλ⁻⁴ + Bλ⁻² + C. The coefficient A is determined to be 1.25 from the scattered light intensity at 0.633 μm for low scattering fiber. The possibility of achieving a transmission loss below 0.1 dB/km at wavelengths above 2 μm is confirmed by the scattering loss characterization obtained for the fluoride optical fibers.

© 1985 Optical Society of America

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