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Applied Optics

Applied Optics


  • Vol. 40, Iss. 10 — Apr. 1, 2001
  • pp: 1668–1671

Fully symmetric nulling beam combiners

E. Serabyn and M. M. Colavita  »View Author Affiliations

Applied Optics, Vol. 40, Issue 10, pp. 1668-1671 (2001)

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A simple method of nulling broadband light is presented. A mirror-symmetric pair of right-angle periscopes is first used to introduce a geometric field flip between two incident light beams, after which the light is combined by means of one of a number of constructive two-beam interferometers. A reciprocal pair of beam-splitter passages provides for complete symmetry. Such an approach greatly eases beam-splitter design requirements and should find use both in initial ground-based nulling experiments and ultimately in space-borne interferometers targeted at direct extrasolar planet detection.

© 2001 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry

Original Manuscript: September 26, 2000
Revised Manuscript: December 19, 2000
Published: April 1, 2001

E. Serabyn and M. M. Colavita, "Fully symmetric nulling beam combiners," Appl. Opt. 40, 1668-1671 (2001)

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