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.
The paper presents the results of investigation studies on the application of sol-gel technology for the production of sensor layers and waveguide layers for the systems of planar waveguide sensors. The sensor layers are made up by silica Si02, which is playing the role of a matrix fixing bromocresol purple. These layers are sensitive to ammonia. The waveguide layers are produced in a two-component system Si02:Ti02.
The aim of the presented investigations was to develop a technique of producing Bragg's grating couplers on planar waveguides obtained by means of the sol-gel technique. The introduction of a beam of light into the structure of the waveguide is in the case of planar optical systems always an essential technological problem, requiring simple and reproducible solutions without extending the waveguide structure too much. The paper deals with the technology of producing grating couplers by impressing the pattern of the network while forming the planar waveguide structure applying the sol-gel method. The results of the investigations on grated couplers obtained in such a way have been presented, too. Attention has been drawn to the possibility of using such structures in optoelectronic sensors, particularly gas sensors, including sensors of toxic gases.
The paper presents investigation results on the application of sol-gel technology for the production of planar waveguides. These waveguides are produced in a two-component system Si02:Ti02. We discussed application potentials of the produced layers and presented the results of theoretical analysis involving future structures.
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