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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 21 — Jul. 20, 2008
  • pp: 3920–3926

Broadband phase and intensity compensation with a deformable mirror for an interferometric nuller

Robert D. Peters, Oliver. P. Lay, and Muthu Jeganathan  »View Author Affiliations

Applied Optics, Vol. 47, Issue 21, pp. 3920-3926 (2008)

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Nulling interferometry has been proposed for the direct detection of Earth-like planets. Deep stable nulls require careful control of the relative intensity and phase of the beams that are being combined. We present a novel compensator, the Adaptive Nuller, that corrects the intensity and phase as a function of wavelength from 8 to 12 μm using a deformable mirror. This compensator has been used to produce rejection ratios of 82000 1 over a bandwidth of 3.2 μm centered around 10 μm .

© 2008 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: March 26, 2008
Revised Manuscript: June 9, 2008
Manuscript Accepted: June 13, 2008
Published: July 17, 2008

Robert D. Peters, Oliver. P. Lay, and Muthu Jeganathan, "Broadband phase and intensity compensation with a deformable mirror for an interferometric nuller," Appl. Opt. 47, 3920-3926 (2008)

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