论文信息 - Grating Assisted InGaAsP/InP Vertical Co-directional Coupler Filter

Grating Assisted InGaAsP/InP Vertical Co-directional Coupler Filter

We report a novel wavelength selective coupler based upon grating‐assisted forward coupling between two, nonidentical, vertically stacked InGaAsP/InP waveguides. Using a 14.4 μm period to provide phase matching between the asynchronous waveguides, we achieve a filter bandwidth (full width at half maximum) of 65 A and coupling efficiency of ∼65% with a device length of only 1.0 mm.

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