title: Demonstration of three-port grating phase relations.
abstract: We experimentally demonstrate the phase relations of three-port gratings by investigating three-port coupled Fabry-Perot cavities. Two different gratings that have the same first-order diffraction efficiency but differ substantially in their second-order diffraction efficiency have been designed and manufactured. Using the gratings as couplers to Fabry-Perot cavities, we could validate the results of an earlier theoretical description of the phases at a three-port grating [Opt. Lett. 30, 1183 (2005)].
authors.affiliation: Albert-Einstein-Institut Hannover, Max-Planck-Institut für Gravitationsphysik and Universität Hannover, Callinstrasse 38, 30167 Hannover, Germany. alexander.bunkowski@aei.mpg.de
authors.forename: A
authors.initials: A
authors.lastname: Bunkowski
authors.forename: O
authors.initials: O
authors.lastname: Burmeister
authors.forename: K
authors.initials: K
authors.lastname: Danzmann
authors.forename: R
authors.initials: R
authors.lastname: Schnabel
authors.forename: T
authors.initials: T
authors.lastname: Clausnitzer
authors.forename: E-B
authors.initials: EB
authors.lastname: Kley
authors.forename: A
authors.initials: A
authors.lastname: Tünnermann