Optical waveguide geodesic lenses without singularity in curvature

Ji Liu; BangRren Shi; Lianwen Wu; Mei Kong

doi:10.1117/12.258206

12 November 1996 Optical waveguide geodesic lenses without singularity in curvature

Ji Liu, BangRren Shi, Lianwen Wu, Mei Kong

Proceedings Volume 2837, Fiber Optic Gyros: 20th Anniversary Conference; (1996) https://doi.org/10.1117/12.258206
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

The study on optical waveguide geodesic lenses that have no aberration and no singularity in curvature was reported. In theoretical design, the general analytical method for designing a perfect geodesic lens, which was first presented by Sottini et al., was improved. In this paper, a suitable function of meridian in transitional zone was chosen deliberately to make sure that the meridian has a continuous second order derivative. A particular solution of nonsingular in curvature, aberrationless, and non-spherical optical waveguide geodesic lens was presented. This kind of geodesic lenses was designed and fabricated with single point diamond machining and high temperature Ti-diffusing in LiNbO₃. Through experimental measurement, it was shown that the spherical aberration was eliminated in 8mm effective aperture and that the focal spot size was 3.3 micrometers for 4.78mm stop size.

Citation Download Citation

Ji Liu, BangRren Shi, Lianwen Wu, and Mei Kong "Optical waveguide geodesic lenses without singularity in curvature", Proc. SPIE 2837, Fiber Optic Gyros: 20th Anniversary Conference, (12 November 1996); https://doi.org/10.1117/12.258206

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