Thermally Induced Focusing Effect In Planar Optical Waveguides

Andrzej W. Domanski; Tomasz Wojcik; Miroslaw Zielonka

doi:10.1117/12.937161

10 March 1987 Thermally Induced Focusing Effect In Planar Optical Waveguides

Andrzej W. Domanski, Tomasz Wojcik, Miroslaw Zielonka

Proceedings Volume 0704, Integrated Optical Circuit Engineering IV; (1987) https://doi.org/10.1117/12.937161
Event: Cambridge Symposium-Fiber/LASE '86, 1986, Cambridge, MA, United States

Abstract

Focusing and deflection of light propagating in planar optical waveguides are caused by the suitable change of the effective refractive /modal/ index of the light - guiding film. The usual technique for obtaining the modal index variation in thin dielectric guides con-sists in change of thickness of the film /overlayer deposition/ or of its bulk refractive index. Referring to the latter method - the ion exchange is commonly applied. In this paper we show that the thermally induced change of the bulk refractive index in glass can be utilized for constructing the light focusing elements of planar optics. We report some preliminary theoretical and experimental results in obtaining the thermally induced planar SELFOC and Luneburg type lenses for light propagating in planar glass waveguide.

Citation Download Citation

Andrzej W. Domanski, Tomasz Wojcik, and Miroslaw Zielonka "Thermally Induced Focusing Effect In Planar Optical Waveguides", Proc. SPIE 0704, Integrated Optical Circuit Engineering IV, (10 March 1987); https://doi.org/10.1117/12.937161

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