Multimode optical fiber optimized to operate around 1060 nm, and corresponding multimode optical system
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United States of America Patent
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Nov 17, 2020
Grant Date -
Nov 21, 2019
app pub date -
Feb 3, 2017
filing date -
Feb 3, 2017
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Abstract
A multimode optical fiber (10) comprises an a-profile graded index core, a trench (13) surrounding the core (11) and an intermediate cladding (12) between the core and the trench. Such a multimode optical fiber (10) has: —A mode carrying capacity between 54 and 68 LP modes at 1060 nm, defined by a specific relationship between the numerical aperture of the core and the core radius, —A defined relationship between trench, core and intermediate cladding parameters to achieve a high bandwidth and low bend-loss at 1060 nm, and—A core radius between 24 and 26 μm, a numerical aperture between 0.190 and 0.225 and a value of a between 2.01 and 2.05 to retain compatibility with legacy fibers.
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