公开(公告)号：EP1403669A3

公开(公告)日：2004-08-18

申请号：EP03020824.3

申请日：2003-09-12

申请人： FITEL USA CORPORATION, (A Delaware Corporation)

发明人： Gruner-Nielsen, Lars ,  Le, Quang, Nghi, Trong ,  Kristensen, Poul ,  Wandel, Marie

IPC分类号： G02B6/293 ,  G02B6/22 ,  G02B6/16 ,  H04B10/18

CPC分类号： G02B6/02261 ,  G02B6/0228 ,  G02B6/02285 ,  G02B6/03611 ,  G02B6/03644 ,  G02B6/03694 ,  G02B6/29377 ,  H04B10/2525

摘要： Disclosed is a dispersion-compensating (DC) module [740] comprising a first length of DC optical fiber [10] in tandem with a second length of a standard singlemode optical fiber. The DC fiber is fabricated from silica glass and has a refractive index profile that includes a core region [51] surrounded by a cladding region [52] having a nominal refractive index n 4 . The core region includes a central core [511] having a nominal refractive index n 1 , a "trench" [512] surrounding the central core having a nominal refractive index n 2 , and a "ridge" [513] surrounding the trench having a nominal refractive index n 3 . A range of refractive index profiles has been found that provides relative dispersion slopes (RDS) that are greater than 0.012 nm -1 and figures of merit that are greater than 200 ps/(nm-dB).

公开(公告)号：EP1403669A2

公开(公告)日：2004-03-31

申请号：EP03020824.3

申请日：2003-09-12

申请人： FITEL USA CORPORATION, (A Delaware Corporation)

发明人： Gruner-Nielsen, Lars ,  Le, Quang, Nghi, Trong ,  Kristensen, Poul ,  Wandel, Marie

IPC分类号： G02B6/293 ,  G02B6/22 ,  G02B6/16 ,  H04B10/18

CPC分类号： G02B6/02261 ,  G02B6/0228 ,  G02B6/02285 ,  G02B6/03611 ,  G02B6/03644 ,  G02B6/03694 ,  G02B6/29377 ,  H04B10/2525

摘要： Disclosed is a dispersion-compensating (DC) module [740] comprising a first length of DC optical fiber [10] in tandem with a second length of a standard singlemode optical fiber. The DC fiber is fabricated from silica glass and has a refractive index profile that includes a core region [51] surrounded by a cladding region [52] having a nominal refractive index n 4 . The core region includes a central core [511] having a nominal refractive index n 1 , a "trench" [512] surrounding the central core having a nominal refractive index n 2 , and a "ridge" [513] surrounding the trench having a nominal refractive index n 3 . A range of refractive index profiles has been found that provides relative dispersion slopes (RDS) that are greater than 0.012 nm -1 and figures of merit that are greater than 200 ps/(nm-dB).

摘要翻译： 公开了一种色散补偿（DC）模块[740]，其包括与第二长度的标准单模光纤串联的第一长度的DC光纤[10]。 DC光纤由石英玻璃制成并且具有包括由具有标称折射率n4的包层区域[52]围绕的芯区域[51]的折射率分布。 芯区包括具有标称折射率n1的中心芯[511]，围绕具有标称折射率n2的中心芯的“沟槽”[512]，以及围绕沟槽的“脊”[513]，其具有标称折射率 索引n3。 已经发现一系列折射率分布图，其提供大于0.012nm-1的相对色散斜率（RDS）和大于200ps /（nm-dB）的品质因数。