FIBER COUPLER, SYSTEM AND ASSOCIATED METHODS FOR REDUCING BACK REFLECTIONS

An apparatus which couples light to a fiber from a light source at an input plane while reducing back reflections includes returning light reflected back through such that the returning ligh t does not substantially overlap with an output of the light source in the input plane. This apparatus may in...

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Bibliographic Details
Main Authors WELCH, WILLIAM H, KOEHLER, CHARLES S, KATHMAN, ALAN D, JOHNSON, ERIC G, TEKOLSTE, ROBERT D
Format Patent
LanguageEnglish
French
Published 06.10.2009
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:An apparatus which couples light to a fiber from a light source at an input plane while reducing back reflections includes returning light reflected back through such that the returning ligh t does not substantially overlap with an output of the light source in the input plane. This apparatus may include a mode matching elemen t and/or an angular distribution altering element. The apparatus may be reciprocal. The reciprocal apparatus may prevent light traversing the apparatus again having a change in phase of light from substantially overlapping an original object in an input plane.
Bibliography:Application Number: CA20012403682