期刊
SCIENTIFIC REPORTS
卷 9, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41598-019-44951-4
关键词
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资金
- Innovation Fund Denmark [4107-00011 A]
- Hans Christian Orsted COFUNDED Marie-curie action fellowship
- Hans Christian Orsted running cost project
- University of Sydney
- Danish Council for Independent Research (FTP) [4184-00359B]
M-type fibers have the exceptional property that the higher-order LPOn modes are core-confined and easily excited, while the LP01 and other modes are confined to a high-index ring surrounding the core, so they are not easily excited. This has profound consequences for mid-infrared supercontinuum sources, where the high zero-dispersion wavelength of chalcogenide and ZBLAN fibers means that exotic pump sources have so far been necessary. We show here that in chalcogenide and ZBLAN M-type fibers the lower ZDW of the core-confined higher-order LP02 mode can be in the range of 2 to 3 mu m (around 1.55 mu m), while the fiber still has a large core diameter and thus supports high average power. This will allow established pump laser technology to be used in future high-power mid-infrared supercontinuum sources.
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