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Please use this identifier to cite or link to this item: http://hdl.handle.net/2014/41657

Title: Measurement of spatial filtering capabilities of single mode infrared fibers
Authors: Ksendzov, Alexander
Bloemhof, E.
White, V.
Wallace, J. K.
Gappinger, R.O.
Sanghera, J. S.
Busse, L. E.
Kim, W. J.
Pureza, P. C.
Nguyen, V. Q.
Aggarwal, I. D.
Shalem, S.
Katzi, A.
Keywords: fibers
infrared.
Issue Date: 24-May-2006
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2006.
Citation: Astronomical Telescopes and Instrumentation, Orlando, Florida, May 21-31, 2006.
Abstract: Spatial filtering is necessary to achieve deep nulls in optical interferometer and single mode infrared fibers can serve as spatial filters. The filtering function is based on the ability of these devices to perform the mode-cleaning function: only the component of the input field that is coupled to the single bound (fundamental) mode of the device propagates to the output without substantial loss. In practical fiber devices, there are leakage channels that cause light not coupled into the fundamental mode to propagate to the output. These include propagation through the fiber cladding and by means of a leaky mode. We propose a technique for measuring the magnitude of this leakage and apply it to infrared fibers made at the Naval Research Laboratory and at Tel Aviv University.
URI: http://hdl.handle.net/2014/41657
Appears in Collections:JPL TRS 1992+

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