An infrared integrated optic astronomical beam combiner for stellar interferometry at 3-4 microm.
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.
Hsiao
Hsien-Kai
HK
Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, AnnArbor, MI 48109, USA.
Winick
K A
KA
Monnier
John D
JD
Berger
Jean-Philippe
JP