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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 13 — Jul. 1, 2009
  • pp: 1985–1987

Achromatic deep nulling with a three-dimensional Sagnac interferometer

Kaito Yokochi, Alexander V. Tavrov, Jun Nishikawa, Naoshi Murakami, Lyu Abe, Motohide Tamura, Mitsuo Takeda, and Takashi Kurokawa  »View Author Affiliations

Optics Letters, Vol. 34, Issue 13, pp. 1985-1987 (2009)

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A 3-D Sagnac interferometer can null out light from an on-axis source achromatically. The 3-D Sagnac interferometer can make stable and achromatic π phase shifts, because it has a common path structure. The achromaticity of the interferometer is theoretically proved by Jones calculus. The experimental setup is constructed, and its nulling characteristics are measured to be about 10 6 at 5 λ d for green ( λ = 532 nm ) and red ( λ = 633 nm ) laser light simultaneously. This interferometer would be very useful for the direct detection of faint extrasolar planets.

© 2009 Optical Society of America

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(260.3160) Physical optics : Interference

ToC Category:
Physical Optics

Original Manuscript: January 8, 2009
Revised Manuscript: May 22, 2009
Manuscript Accepted: May 24, 2009
Published: June 24, 2009

Kaito Yokochi, Alexander V. Tavrov, Jun Nishikawa, Naoshi Murakami, Lyu Abe, Motohide Tamura, Mitsuo Takeda, and Takashi Kurokawa, "Achromatic deep nulling with a three-dimensional Sagnac interferometer," Opt. Lett. 34, 1985-1987 (2009)

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