公开(公告)号：EP2678723A4

公开(公告)日：2014-08-06

申请号：EP12790350

申请日：2012-02-24

申请人： OFS FITEL LLC ,  GRUNER-NIELSEN LARS ,  LINGLE ROBERT L ,  MCCURDY ALAN ,  PECKHAM DAVID W ,  SUN YI

发明人： GRUNER-NIELSEN LARS ,  LINGLE ROBERT L ,  MCCURDY ALAN ,  PECKHAM DAVID W ,  SUN YI

IPC分类号： G02B6/02 ,  G02B6/028 ,  G02B6/036

CPC分类号： G02B6/02042 ,  G02B6/02 ,  G02B6/02019 ,  G02B6/0281 ,  G02B6/0288 ,  G02B6/03611 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/0365 ,  G02B6/03666 ,  G02B6/03683 ,  G02B6/262

摘要： In an optical fiber, a plurality of individual cores extend through a common cladding. Each individual core supports at least one local transverse spatial mode. The individual cores and surrounding cladding are structured to support propagation of plurality of desired signal-carrying modes, while suppressing undesired modes, thereby supporting the propagation of one or more spatially multiplexed signals. The core-to-core spacing of the fiber is configured to maintain an acceptably low level of mode-coupling between cores.

公开(公告)号：EP2534511A4

公开(公告)日：2017-12-27

申请号：EP11742737

申请日：2011-02-09

申请人： OFS FITEL LLC

发明人： JIANG XINLI ,  KIM JINKEE ,  OULUNDSEN GEORGE ,  SUN YI

IPC分类号： G02B6/036 ,  G02B6/028

CPC分类号： G02B6/0281 ,  G02B6/02042 ,  G02B6/028 ,  G02B6/0288 ,  G02B6/03616 ,  G02B6/03638 ,  G02B6/0365 ,  G02B6/03661

摘要： Optical fiber refractive index profile designs having an alpha core profile and a negative index trench to control bend loss, are modified by truncating the edge of the alpha core profile and adding a ledge to the truncated core. The result is low bend loss and preservation of low differential mode delay and high bandwidth.