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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 35 — Dec. 10, 2010
  • pp: 6675–6688

Midinfrared broadband achromatic astronomical beam combiner for nulling interferometry

Hsien-kai Hsiao, Kim A. Winick, and John D. Monnier  »View Author Affiliations


Applied Optics, Vol. 49, Issue 35, pp. 6675-6688 (2010)
http://dx.doi.org/10.1364/AO.49.006675


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Abstract

Integrated optic beam combiners offer many advantages over conventional bulk optic implementations for astronomical imaging. To our knowledge, integrated optic beam combiners have only been demonstrated at operating wavelengths below 4 μm . Operation in the midinfrared wavelength region, however, is highly desirable. In this paper, a theoretical design technique based on three coupled waveguides is developed to achieve fully achromatic, broadband, polarization-insensitive, lossless beam combining. This design may make it possible to achieve the very deep broadband nulls needed for exoplanet searching.

© 2010 Optical Society of America

OCIS Codes
(130.3060) Integrated optics : Infrared
(130.3120) Integrated optics : Integrated optics devices
(350.1260) Other areas of optics : Astronomical optics
(110.3175) Imaging systems : Interferometric imaging
(120.6168) Instrumentation, measurement, and metrology : Speckle interferometry, stellar

ToC Category:
Imaging Systems

History
Original Manuscript: August 16, 2010
Manuscript Accepted: September 25, 2010
Published: December 1, 2010

Citation
Hsien-kai Hsiao, Kim A. Winick, and John D. Monnier, "Midinfrared broadband achromatic astronomical beam combiner for nulling interferometry," Appl. Opt. 49, 6675-6688 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-35-6675

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