Modal characteristics of a novel multicore optical fiber
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Key Laboratory of Miero/Nano Optoelectronic Devices of Ministry of Education, School of Computer and Communication, HunanUniversity, Changsha 410082, China
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Corresponding author:
WEN Shuang-chun, scwen@hnu.cn
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Received Date:
2008-11-08
Accepted Date:
2008-12-15
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Abstract
In order to achieve high-power and high-brightness fiber laser beams,based on the strong coupling mechanism of evanescent field,the modal field characteristics of multicore fibers,including a bundle of multiple micro/nano fibers or a bundle of multiple micro/nano fibers and large core fibers,were numerically simulated and theoretically analyzed with finite difference time domain(FDTD)method.The result shows that good coupling among the fibers can be obtained in a micro/nano fiber array and that the modal field is flattened by the micro/nano fibers in the bundle of multiple micro/nano fibers and large core fibers.The result is useful to further development of high-power lasers and amplifiers.
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