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Silicon oxynitride planar waveguiding structures for application in optical communication

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5 Author(s)
de Ridder, R.M. ; MESA Res. Inst., Twente Univ., Enschede, Netherlands ; Warhoff, K. ; Driessen, A. ; Lambeck, P.V.
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The refractive index of silicon oxynitride (SiON), a widely used material for integrated optics devices, can be chosen in a wide range between 1.45-2.0. We describe how the consequent large design freedom can be exploited on the one hand for a “standard” polarization independent optical channel waveguide having a favorable tradeoff between efficient fiberchip coupling and small bend radii (compact devices) and on the other hand for special-purpose and hybrid components where the refractive index should be finely adjusted for obtaining the desired functionality. We illustrate the applicability of SiON by describing a few devices for optical filtering in a new architecture for wavelength multiplexing, modulation, polarization splitting and second-harmonic generation

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Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:4 ,  Issue: 6 )