title: Eigenvalue translation method for mode calculations.
abstract: A new method is described for the first few modes calculations in a interferometer that has several advantages over the Allmat subroutine, the Prony method, and the Fox and Li method. In the illustrative results shown for some cases it can be seen that the eigenvalue translation method is typically 100-fold times faster than the usual Fox and Li method and ten times faster than Allmat.
authors.forename: E
authors.initials: E
authors.lastname: Gerck
authors.forename: C H
authors.initials: CH
authors.lastname: Cruz