Multimode optical fiber with a higher order mode removing function
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United States of America Patent
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Mar 18, 2003
Grant Date -
N/A
app pub date -
Nov 28, 2000
filing date -
Mar 31, 1999
priority date (Note) -
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Abstract
The present invention's multimode optical fiber is characterized in that the propagating modes include a mode the lowest and second or higher order modes; and the difference between the propagation constants of the lowest order mode and the second order mode is 2-fold or more than the difference between the propagation constants of adjacent modes that are second order or higher order modes. Due to this design, single mode propagation becomes possible once the modes have propagated over a specific distance. As a result, it is possible to relax the conventional single mode conditions, enabling the fiber parameters to be set relatively freely.
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