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Spun non-circular and non-elliptical core optical fibers and apparatuses utilizing the same
Spun non-circular and non-elliptical core optical fibers and apparatuses utilizing the same
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机译:纺制非圆形和非椭圆形芯光纤以及使用该光纤的设备
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摘要
Optical fibers are provided for modal discrimination which include a central core and a cladding disposed about the central core. The central core has a non-circular and non-elliptical cross-section, and it is rotated about a central axis of the optical fiber along the length of the optical fiber at a selected pitch resulting in the capability of a fundamental mode beam output for large core sizes. An optical system includes a seed optical source configured to provide a seed beam and an optical amplifier configured to receive and amplify the seed beam. The optical amplifier also includes an active optical fiber having a large mode area non-circular and non-elliptical core rotated about a central axis of said active optical fiber to provide modal discrimination and fundamental mode output.
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