Use of single-mode waveguides to correct the optical defects of a nulling interferometer
JOSA A, Vol. 19, Issue 3, pp. 596-602 (2002)
http://dx.doi.org/10.1364/JOSAA.19.000596
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Abstract
In the area of long-baseline nulling interferometry, high rejection ratios are needed to cancel out the light of a bright central source and look for nearby faint structures or companions. These rejection requirements directly translate into drastic optical constraints. We discuss the possibility of using single-mode waveguides for such applications. Conversely to simple pinholes, single-mode waveguides efficiently correct wave-front defects of both high- and low-order spatial frequencies, ensure a perfect matching of the amplitude profiles coming from the various beams, and can be used with almost optimum coupling efficiency over a broad optical bandpass (typically an octave). They then appear to greatly enhance the feasibility of high-dynamic interferometric coronagraphs.
© 2002 Optical Society of America
[Optical Society of America ]
OCIS Codes
(060.2390) Fiber optics and optical communications : Fiber optics, infrared
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(070.6110) Fourier optics and signal processing : Spatial filtering
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(220.1000) Optical design and fabrication : Aberration compensation
(350.1260) Other areas of optics : Astronomical optics
Citation
Bertrand Mennesson, Marc Ollivier, and Cyril Ruilier, "Use of single-mode waveguides to correct the optical defects of a nulling interferometer," J. Opt. Soc. Am. A 19, 596-602 (2002)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-19-3-596
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