title: Distributed feedback device characterization using a continuous wave model.
abstract: The second-order cw equation for a medium having gain and a modulated index of refraction is solved to characterize an aperiodic distributed feedback structure. The solutions are compared with those of a coupled-wave model for the cases of tapered, chirped, and phase-shifted structures. A correlation is observed between the solutions, endorsing the validity of the cw approach.
authors.forename: E T
authors.initials: ET
authors.lastname: Koenig
authors.forename: M A
authors.initials: MA
authors.lastname: Karim