Cronkite P J, Lawrence G N
Appl Opt. 1988 Feb 15;27(4):679-83. doi: 10.1364/AO.27.000679.
The focusing grating coupler (FGC) can be constructed using holographic techniques. Due to the wavelength scaling between the construction of the FGC and its final end-use operation, aberrations exist in the final spot. A design method is demonstrated that can be used to model the FGC as a holographic optical element. The method also includes techniques to eliminate the aberrations due to the wavelength scaling.