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  • Formation of transverse mode in axially symmetric lasers
    [作者:Niziev, VG; Toebaert, D,期刊:APPLIED OPTICS, 页码:954-962 , 文章类型: Article,,卷期:2012年51-7]
  • The developed iteration algorithm for simulation of lasers with an open resonator was employed in the study of transverse mode formation. The simulations of an axially symmetrical resonator rely on an analytical descript...
  • Fast M-2 measurement for fiber beams based on modal analysis
    [作者:Flamm, D; Schulze, C; Bruning, R; Schmidt, OA; Kaiser, T; Schroter, S; Duparre, M,期刊:APPLIED OPTICS, 页码:987-993 , 文章类型: Article,,卷期:2012年51-7]
  • We report on a fast and experimentally easy technique for measuring the beam propagation ratio M-2 of light guided by optical fibers. A holographic filter enables us to determine amplitudes and phases of the excited fibe...
  • Circular Dammann grating under high numerical aperture focusing
    [作者:Yu, JJ; Zhou, CH; Jia, W; Hu, AD; Wang, SQ; Ma, JY,期刊:APPLIED OPTICS, 页码:994-999 , 文章类型: Article,,卷期:2012年51-7]
  • Circular Dammann grating (CDG) under high numerical aperture (NA) focusing is described based on Richards-Wolf vectorial diffraction theory in this paper. Several CDGs are presented under the condition of NA = 0.9 with t...
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