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A wavelength demultiplexer for CWDM system is designed, fabricated and characterized based on metamaterial structure. The device experimentally displays low loss (−2.3dB), low crosstalk (−16.4dB) and broad 1-dB bandwidth (>18nm) with compact size of 2.6μm×5μm.
Inverse-designed star-crossings with 8 and 10 ports are proposed, with ultra-short coupling lengths of 5.28μm and 5.4μm respectively. Their measured ILs are less than 1.6dB and 2.4dB respectively over 60nm bandwidth centered 1550nm wavelength.
A wavelength demultiplexer with the compact size of 2.6µm×3.8µm is proposed based on a novel photonic-crystal-like metamaterial structure. The device displays low loss (<−1.7dB), low crosstalk (<−13.6dB) and broad bandwidth (>59nm) with large fabrication tolerance.
A novel PhC-like metamaterial structure with low fabricating accuracy requirements is proposed. We design and fabricate a 2.6μm×2.6μm coupler employing such structure. The measured excess loss of each port is less than 1dB over 60nm.
In this paper, a novel double-slot microring resonator is proposed to produce flat dispersion of 0–3.8 ps/(nm km) over 1150 nm wavelength range. Moreover, the dispersion tailoring with different structural parameters of the proposed microring resonator is analyzed and simulated. The simulation results show that the dispersion fluctuation can be tailored by the height of the central and bottom As2S...
An efficiently tunable and fabrication tolerant microring resonator (MRR) based on a double-slot waveguide with nematic liquid crystal (LC) upper cladding layer is proposed. Two electrodes are disposed horizontally on both sides of the waveguide for electrically tuning the director of the LC highly confined in the slots, which could significantly change the effective refractive index of the TE mode...
An ultra-flat and broad optical frequency comb with 7 dB bandwidth of 1155 nm wavelength is obtained, based on a novel double-slot microring resonator in simulation, which produces flattened dispersion of 0 ∼ 3.8 ps/(nm-km) over a 1150 nm wavelength range.
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