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Proceedings Paper

Theoretical and experimental evaluation of waveguide Talbot array illuminators
Author(s): Werner Klaus; Yukiko Hamaguchi; Kashiko Kodate; Yoshinori Arimoto
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Paper Abstract

The Talbot effect is known as a very effective means to illuminate an array of micro-optical components. In this paper, we analyze the Talbot effect along optical multimode slab waveguides with respect to array illumination and present some experimental results. The analysis is based on (1) the seemingly infinite reproduction of the waveguide aperture in the aperture plane caused by kaleidoscopic total reflections in the waveguide walls, and (2) numerical evaluations of the Fresnel-Kirchhoff diffraction formula. The aperture function is generated by phase elements that are based on Ronchy-type phase gratings with a phase step of 180 degree. The analysis is carried out both for mirror waveguides and dielectric waveguides. The experimental verification of the calculated results was obtained by placing a binary phase grating close to the aperture of a rectangular quartz-glass dielectric waveguide.

Paper Details

Date Published: 15 May 1997
PDF: 11 pages
Proc. SPIE 3010, Diffractive and Holographic Device Technologies and Applications IV, (15 May 1997); doi: 10.1117/12.274442
Show Author Affiliations
Werner Klaus, Communications Research Lab. (Japan)
Yukiko Hamaguchi, Japan Women's Univ. (Japan)
Kashiko Kodate, Japan Women's Univ. (Japan)
Yoshinori Arimoto, Communications Research Lab. (Japan)

Published in SPIE Proceedings Vol. 3010:
Diffractive and Holographic Device Technologies and Applications IV
Ivan Cindrich; Sing H. Lee, Editor(s)

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