Multilayer polymeric mode and polarization filters for integrated optics |
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Authors: | Neha Sharma VK Sharma KN Tripathi |
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Institution: | aDepartment of Electronic Science, University of Delhi, South Campus, Benito Juarez Road, New Delhi 110021, India |
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Abstract: | We demonstrate theoretically as well as experimentally that a four-layer polymeric waveguide structure can be used to produce a mode and a polarization filter. Various optical properties such as refractive index, birefringence and propagation constant of polycarbonate, polystyrene and a commercially available photoresist (from Shipley) are presented. The thin film structures consisting of glass/polycarbonate/polystyrene/air are used for demonstrating polarization filter action and glass/photoresist/polystyrene/air structure for mode filter. Expressions for the electric field intensity spatial distribution for the structure are used to calculate the intensity profiles to support the observed behavior. The experimental values were in good agreement with the one obtained theoretically. |
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Keywords: | Polymer waveguides Mode filter Polarization filter |
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