%0 Book Section %T Phase profile determination for a holocoupler/GRIN medium system publisher SPIE--The International Society for Optical Engineering %D 1990 %U 0-8194-0328-8 %@ https://hdl.handle.net/20.500.14352/60841 %X The phase profile of the wave scattered by a GRIN lens has been determined using the eikonal approximation for the scattering amplitude. This wave acts as the object wave in a holographic register to construct a GRIN holocoupler. Different geometries in the phase profile distribution are presented as functions of the taper shape. %~