Approximating the angular transfer responses of fiber lightguides

Кизеветтер Д.В. Аппроксимация угловых передаточных характеристик волоконных световодов // Оптический журнал. 2007. Т. 74. № 9. С. 20–29.

Kiesewetter D.V. Approximating the angular transfer responses of fiber lightguides [in Russian] // Opticheskii Zhurnal. 2007. V. 74. № 9. P. 20–29.

D. V. Kisevetter, "Approximating the angular transfer responses of fiber lightguides," Journal of Optical Technology. 74 (9), 592-599 (2007). https://doi.org/10.1364/JOT.74.000592

This paper proposes approximations of the angular transfer responses of fiber lightguides by mathematical functions associated with solutions of the diffusion equation. The parameters of the approximations are determined for various lightguides. The angular intensity distributions are investigated for the output radiation from the shortest possible lightguides. The possibility is demonstrated of calculating the directional patterns of lightguides based on the proposed approximations, including the case of lightguides with scattering end surfaces.