Wavelength-Selective Interlayer-Directionally Grating-Coupled InP/InGaAsP Anti-Resonant Reflecting Optical Waveguide (ARROW) photodetector.
01 January 1987
We present the first demonstration of interlayer (vertical) directional grating-coupling using a permanently incorporated corrugated layer grating. Using an InP/InGaAsP Anti-Resonant Reflecting Optical Waveguide (ARROW) geometry grown by a combination of Chemical Beam Epitaxy and Metal-Organic Chemical Vapor Deposition, we have achieved a large mode contra-directionally grating- coupled waveguide photodetector with a spectral response peak only 7angstroms wide. The "optical bus" capabilities of the vertically coupled ARROW structure make this device suitable for optical integration.