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Alignment tolerances for plane-wave to single-mode fiber coupling and their mitigation by use of pigtailed
Oswald Wallner1, Peter J Winzer, Walter R Leeb
1Institut für Nachrichtentechnik und Hochfrequenztechnik, Vienna University of Technology, Austria. oswald.wallner@ieee.org
Applied Optics
|May 8, 2002
Abstract:
We discuss the efficiency with which coherent plane waves can be coupled to single-mode fibers in the presence of deterministic or stochastic misalignments of the fiber relative to the focal point of a lens. We point out how the alignment demands can be relaxed by means of graded-index-lens fiber-pigtailed collimators.