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We demonstrate a grating coupler for use on a 3 µm device layer SOI platform by employing a two-stage taper. Our measured radiation efficiency is 75% and simulations show output as high as 86%.
We demonstrate a compact 40-channel, dense wavelength division multiplexing (DWDM) VMUX/DEMUX by monolithic integration of an echelle grating and high-speed p-i-n VOA on the silicon-on-insulator (SOI) platform. The demonstrated device has low optical loss, low PDL, fast attenuation response speed and an area of only 25mm by 10mm.
Flat-top demultiplexers using etched diffraction gratings in the silicon-on-insulator (SOI) platform are reported and experimentally demonstrated. The novel design enables the loss and crosstalk of the devices to be insensitive to the vertical angle of the grating facets.
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