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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 45, Iss. 26 — Sep. 10, 2006
  • pp: 6712–6717

Three-beam photonic crystal fiber imaging interferometer

Sébastien Vergnole, Laurent Delage, and François Reynaud  »View Author Affiliations


Applied Optics, Vol. 45, Issue 26, pp. 6712-6717 (2006)
http://dx.doi.org/10.1364/AO.45.006712


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Abstract

Some varieties of photonic crystal fiber (PCF) have huge potential for high-resolution imaging in astronomy. They allow us to operate in a single-mode regime over a wide bandwidth keeping a high transmission level. Thus they may be used to carry wide spectral light over hundreds of meters. We report the implementation of what we believe to be the first three-beam interferometer fitted with PCF arms. This configuration is needed to achieve high-resolution imaging. A full description of the experimental setup is given, and closure phase measurements achieved over a 1 μ m bandwidth are also presented. With a pointlike source, the theoretical closure phase is expected to be 0  rad . Experimentally, a mean closure phase of 0.01  rad has been measured with a 0.07  rad standard deviation. These results confirm that PCF should be used in an astronomical context.

© 2006 Optical Society of America

OCIS Codes
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(350.1260) Other areas of optics : Astronomical optics

History
Original Manuscript: February 7, 2006
Manuscript Accepted: March 30, 2006

Citation
Sébastien Vergnole, Laurent Delage, and François Reynaud, "Three-beam photonic crystal fiber imaging interferometer," Appl. Opt. 45, 6712-6717 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-26-6712

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