Abstract
We present the derivation of the normalization constant for the perturbation matrix method recently proposed. The method is tested on the problem of a binary waveguide array for which an exact and an approximate solution are known. In our analysis, we show that to third order the normalized matrix method approximate solution gives results coinciding with the exact known solution.
Acknowledgements
B.M. Villegas-Martínez thanks the support given by the National Council on Science and Technology (CONACYT).
Notes
No potential conflict of interest was reported by the authors.