Wavelength selective interlayer directionally grating-coupled InP/InGaAsP waveguide photodetection

Koch, T. L.; Corvini, P. J.; Tsang, W. T.; Koren, U.; Miller, B. I.
October 1987
Applied Physics Letters;10/5/1987, Vol. 51 Issue 14, p1060
Academic Journal
We present the first demonstration of interlayer, or vertical, directional grating coupling using a permanently incorporated corrugated layer grating. Based on an InP/InGaAsP antiresonant reflecting optical waveguide (ARROW) geometry grown by chemical beam epitaxy and metalorganic chemical vapor deposition, we have achieved a large mode contradirectional grating-coupled waveguide photodetector with a spectral response peak 9 Å wide. The ‘‘optical bus’’ capabilities of the vertically coupled ARROW structure make this device suitable for optical integration.


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