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Minimum length of a single-mode fiber spatial filter
Oswald Wallner1, Walter R Leeb, Peter J Winzer
1Institut für Nachrichtentechnik und Hochfrequenztechnik, Technische Universität Wien, Gusshausstrasse 25/389, A-1040 Vienna, Austria. oswald.wallner@ieee.org
Abstract:
Using the concept of leaky modes, we derive the minimum length of a single-mode fiber required to act as a spatial-mode filter of given quality. The degree of filter action is defined by the ratio of power carried by the fundamental mode to that carried by the leaky modes.
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