title: An infrared integrated optic astronomical beam combiner for stellar interferometry at 3-4 microm.
abstract: Integrated-optic, astronomical, two-beam and three-beam, interferometric combiners have been designed and fabricated for operation in the L band (3 microm--4 microm) for the first time. The devices have been realized in titanium-indiffused, x-cut lithium niobate substrates, and on-chip electro-optic fringe scanning has been demonstrated. White light fringes were produced in the laboratory using the two-beam combiner integrated with an on-chip Y-splitter.
authors.affiliation: Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, AnnArbor, MI 48109, USA.
authors.forename: Hsien-Kai
authors.initials: HK
authors.lastname: Hsiao
authors.forename: K A
authors.initials: KA
authors.lastname: Winick
authors.forename: John D
authors.initials: JD
authors.lastname: Monnier
authors.forename: Jean-Philippe
authors.initials: JP
authors.lastname: Berger