9 April 2002 Four-layer polymeric optical waveguides based on styrene acrylonitrile (SAN)
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Abstract
Polymeric Optical Waveguides have attracted a lot of attention with a view to their flexibility for fabrication and their cost effectiveness. In the search for new materials recently the study of Styrene Acrylonitrile (SAN) thin film optical waveguides has been reported. SAN exhibits a considerable transmission (80-90%) in the visible and infrared regions, which is important for integrated optical devices. But the propagation loss is a major drawback of SAN based waveguides. Here we report 4-layer waveguides with Glass plus SAN plus Polystyrene plus air, structure. With the help of this multilayer structure we were able to reduce propagation loss by 30% in comparison to single layer SAN based waveguides. We also present the other basic properties like index profile, guide thickness, birefringence.
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G. J. Qureshi, V. K. Gupta, Amit Pratap Singh, Avinashi Kapoor, K. N. Tripathi, "Four-layer polymeric optical waveguides based on styrene acrylonitrile (SAN)", Proc. SPIE 4679, Laser-Induced Damage in Optical Materials: 2001, (9 April 2002); doi: 10.1117/12.461703; https://doi.org/10.1117/12.461703
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