Optical fiber having an expanded mode field diameter and methods of providing such a fiber
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United States of America Patent
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Issued Date -
May 20, 2004
app pub date -
May 15, 2003
filing date -
May 16, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed is an optical fiber article comprising an optical fiber having a core and a cladding disposed about the core. The cladding can have a normal effective refractive index that is lower than the refractive index of the core, and the optical fiber can include a selected section wherein the cladding has a selected effective refractive index that is substantially higher than the normal effective refractive index for expanding the mode field diameter of the fiber along the selected section to be substantially larger than the normal mode field diameter. The fiber can be microstructured optical fiber, and can be joined, such as by splicing, to another optical fiber or device.
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