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1 2006

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Impressing technology of optical Bragg's gratings on planar optical sol-gel waveguides

Pustelny T., Zielonka I., Tyszkiewicz C., Karasiński P., Pustelny B.

Opto-Electronics Review

2006

Vol. 14, No. 2

161-166

The aim of the presented investigations was to develop a technique of producing Bragg's grating couplers on planar waveguides. Waveguides are obtained by means of the sol-gel technology. The introduction of a light beam into the structure of the waveguide is in the case of planar or strip optical systems always an essential technical problem, requiring simple and reproducible solutions without extending excessively the waveguide structure. The paper presents a technology of producing grating couplers by impressing the pattern of the network while forming the planar waveguide structure applying the sol-gel method. Some remarks concerning the sol-gel technology are also presented. The results of investigations on grating couplers obtained in such a way have been discussed, too. Attention has been drawn to the possibility of using such structures in optoelectronic sensors, particularly gas sensors, including sensors of water vapour as well as toxic gases.