Ultra-Sharp Multimode Waveguide Bends With Dual Polarizations
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DOI: 10.1109/jlt.2020.2982736
Abstract: A silicon-based on-chip ultra-sharp multimode waveguide bend (MWB) is proposed to work for dual polarizations by introducing modified Euler-curves and shallowly-etched non-uniform subwavelength-gratings (SWGs). For the designed 90° MWB with a core width of 1.01 μm… read more here.
Keywords: dual polarizations; sharp multimode; multimode waveguide; waveguide bends ... See more keywords
Compact and Fabrication-Tolerant Waveguide Bends Based on Quadratic Reflectors
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DOI: 10.1109/jlt.2020.2986576
Abstract: We propose and experimentally demonstrate a broadband, polarization-diverse compact bending design for low-index-contrast waveguides, where light is re-directed via total internal reflection (TIR) on an air-trench quadratic (elliptical or parabolic) reflector surface. Compared to prior… read more here.
Keywords: fabrication tolerant; tolerant waveguide; fabrication; compact fabrication ... See more keywords
Waveguide Bends for Suppressed Mode Coupling
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DOI: 10.1109/jqe.2019.2958364
Abstract: Waveguide bends are key components of photonic integrated circuits, enabling complex layouts and high packing densities. Often waveguides at bends are wide and consequently multi-mode for lower loss propagation. Higher order modes, which are excited… read more here.
Keywords: bend curvature; order modes; higher order; curvature ... See more keywords