Wavelength-selective grating-assisted codirectional coupler tunable receiver on InP/InGaAsP
The authors demonstrate the first grating-assisted codirectional coupler (GACC) based tunable the InP/InGaAsP materials system. Initial results using reverse bias show a receiver full-width half-maximum of 4 nm and a tuning range of 3 nm. From numerical simulations the authors found the material uniformity played a very important role in the performance of GACC filters.