title: Efficient inverse scattering algorithm for the design of grating-assisted codirectional mode couplers
abstract: An efficient method for the design of optical devices based on codirectional grating-assisted mode coupling is presented. A low-complexity algorithm is developed to calculate the coupling function of a grating that accurately matches an arbitrarily given target spectral response. The method relies on the synthesis of the grating impulse response by means of an exact differential layer-peeling algorithm.
authors.affiliation: Optoelectronics Research Centre, University of Southampton, UK. rfeced@nortelnetworks.com
authors.initials: R
authors.lastname: Feced
authors.initials: MN
authors.lastname: Zervas