期刊
APPLIED PHYSICS B-LASERS AND OPTICS
卷 100, 期 4, 页码 859-864出版社
SPRINGER
DOI: 10.1007/s00340-010-4048-0
关键词
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We propose a new method to control the mode combination at the output of a 19-core fiber laser in order to produce a bright beam with uniform phase. The technique is based on both the selective excitation of the amplifying multicore fiber and on an intra-cavity angular filtering at the output. The excitation of the fundamental in-phase supermode of the 19-core fiber was demonstrated, resulting in the emission of a single-mode beam with M (2) limited to 1.21.
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