公开(公告)号：EP1756634B1

公开(公告)日：2013-07-10

申请号：EP05751945.6

申请日：2005-05-06

申请人： The Board of Trustees of the Leland Stanford Junior University

发明人： KIM, Hyang, Kyun ,  FAN, Shanhui ,  KINO, Gordon, S. ,  SHIN, Jonghwa ,  DIGONNET, Michel, J.F. ,  DANGUI, Vinayak

IPC分类号： G02B6/02

CPC分类号： G02B6/02328 ,  G02B6/02338 ,  G02B6/02347

公开(公告)号：EP1991894A1

公开(公告)日：2008-11-19

申请号：EP07752249.8

申请日：2007-03-02

申请人： The Board of Trustees of The Leland Stanford Junior University

发明人： DANGUI, Vinayak ,  DIGONNET, Michel J., F. ,  KINO, Gordon S.

IPC分类号： G02B6/02

CPC分类号： G02B6/02042 ,  G02B6/02328 ,  G02B6/02338 ,  G02B6/02347 ,  G02B6/2821

摘要： An optical coupler (100) includes a first optical port (110) , a second optical port (120) , a third optical port (130) , and a fourth optical port (140) . The optical coupler further includes a photonic-bandgap fiber (150) having a cladding (160) , a first core (170) , and a second core (180) . The cladding includes a material with a first refractive index and regions within the cladding. The regions have a second refractive index lower than the first refractive index. The first core is substantially surrounded by the cladding. The first core is optically coupled to the first optical port and to the second optical port. The second core is substantially surrounded by the cladding. The second core is optically coupled to the third optical port and to the fourth optical port. At least a portion of the first core is generally parallel to and spaced from at least a portion of the second core such that the first core is optically coupled to the second core. The first core, the second core, or both the first core and the second core is hollow.

公开(公告)号：EP1756634A1

公开(公告)日：2007-02-28

申请号：EP05751945.6

申请日：2005-05-06

申请人： THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

发明人： KIM, Hyang, Kyun ,  FAN, Shanhui ,  KINO, Gordon, S. ,  SHIN, Jonghwa ,  DIGONNET, Michel, J.F. ,  DANGUI, Vinayak

IPC分类号： G02B6/02

CPC分类号： G02B6/02328 ,  G02B6/02338 ,  G02B6/02347

摘要： A photonic-bandgap fiber includes a photonic crystal lattice with a first material having a first refractive index and a pattern of a second material formed therein. The second material has a second refractive index lower than the first refractive index. The photonic crystal lattice has a plurality of first regions that support intensity lobes of the highest frequency bulk mode and has a plurality of second regions that do not support intensity lobes of the highest frequency bulk mode. The photonic-bandgap fiber further includes a central core formed in the photonic crystal lattice. The photonic-bandgap fiber further includes a core ring having an outer perimeter. The core ring surrounds the central core, wherein the outer perimeter of the core ring passes only through the second regions of the photonic crystal lattice.

公开(公告)号：EP1991894B1

公开(公告)日：2012-12-19

申请号：EP07752249.8

申请日：2007-03-02

申请人： The Board of Trustees of the Leland Stanford Junior University

发明人： DANGUI, Vinayak ,  DIGONNET, Michel J., F. ,  KINO, Gordon S.

IPC分类号： G02B6/02

CPC分类号： G02B6/02042 ,  G02B6/02328 ,  G02B6/02338 ,  G02B6/02347 ,  G02B6/2821

公开(公告)号：EP1792213A2

公开(公告)日：2007-06-06

申请号：EP05843332.7

申请日：2005-09-09

申请人： THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

发明人： DANGUI, Vinayak ,  DIGONNET, Michel, J., F. ,  KINO, Gordon, S.

IPC分类号： G02B6/02

CPC分类号： G02B6/02328 ,  B82Y20/00 ,  G02B6/02323 ,  G02B6/02338 ,  G02B6/02347

公开(公告)号：EP1506443B1

公开(公告)日：2007-03-28

申请号：EP03729026.9

申请日：2003-05-19

申请人： THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

发明人： DIGONNET, Michel, J., F. ,  DANGUI, Vinayak

IPC分类号： G02B6/02 ,  H01S3/067

CPC分类号： G02B6/03638 ,  G02B6/02071 ,  G02B6/02095 ,  G02B6/0281 ,  G02B6/2852 ,  G02B6/4214 ,  H01S3/06708 ,  H01S3/06729 ,  H01S3/0675 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/094019 ,  H01S5/2036

摘要： Long-period fiber gratings are placed in a predetermined pattern along a double-clad optical fiber having an outer cladding, an inner cladding and a core. The core is doped with an optically active material such as, for example, a rare earth ion or other laser ion. The long-period fiber gratings couple light between a mode of the inner cladding and a mode of the core. As a consequence of increased coupling into the core resulting from the use of long-period fiber gratings, the length of double-clad optical fiber needed to transfer light between the inner cladding and the core is reduced.

公开(公告)号：EP1506443A1

公开(公告)日：2005-02-16

申请号：EP03729026.9

申请日：2003-05-19

申请人： The Board of Trustees of The Leland Stanford Junior University

发明人： DIGONNET, Michel, J., F. ,  DANGUI, Vinayak

IPC分类号： G02B6/16 ,  H01S3/067

CPC分类号： G02B6/03638 ,  G02B6/02071 ,  G02B6/02095 ,  G02B6/0281 ,  G02B6/2852 ,  G02B6/4214 ,  H01S3/06708 ,  H01S3/06729 ,  H01S3/0675 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/094019 ,  H01S5/2036

摘要： Long-period fiber gratings are placed in a predetermined pattern along a double-clad optical fiber having an outer cladding, an inner cladding and a core. The core is doped with an optically active material such as, for example, a rare earth ion or other laser ion. The long-period fiber gratings couple light between a mode of the inner cladding and a mode of the core. As a consequence of increased coupling into the core resulting from the use of long-period fiber gratings, the length of double-clad optical fiber needed to transfer light between the inner cladding and the core is reduced.