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1. 发明专利

DE60216704D1 未知
公开(公告)号：DE60216704D1
公开(公告)日：2007-01-25
申请号：DE60216704
申请日：2002-10-18
申请人： FUJIKURA LTD
发明人： AIKAWA KAZUHIKO , SHIMIZU SHOGO , SUZUKI TAKAAKI , NAKAYAMA MASAKAZU , HIMENO KUNIHARU
IPC分类号： G02B6/02 , G02B6/036
摘要： A dispersion compensating fiber, which has a negative dispersion slope with a large absolute value while maintaining the absolute value of the chromatic dispersion, and which has sufficient dispersion slope compensation properties even for the non-zero dispersion shifted optical fiber requiring a large RDS for dispersion compensation. In this dispersion compensating fiber, the radius of a ring core region (3) is set in a range from 6.7 mu m to 10.7 mu m, the radius ratio of a depressed core region (2) relative to a central core region (1) is set in a range from 2.0 to 3.0, and the radius ratio of the ring core region (3) relative to the depressed core region (2) is set in a range from 1.3 to 2.0, the relative refractive index difference of the central core region (1) relative to the cladding (4) is set in a range from +1.00% to +1.80%, the relative refractive index difference of the depressed core region (2) relative to the cladding (4) is set in a range from -1.20% to -1.50%, and the relative refractive index difference of the ring core region (3) relative to the cladding (4) is set in a range from +0.20% to +0.50%.

2. 发明专利

DE60206563D1 未知
公开(公告)号：DE60206563D1
公开(公告)日：2006-02-23
申请号：DE60206563
申请日：2002-03-07
申请人： FUJIKURA LTD
发明人： AIKAWA KAZUHIKO , NAGASAWA YUTAKA , SHIMIZU SHOGO , SUZUKI TAKAAKI , NAKAYAMA MASAKAZU , HIMENO KUNIHARU , YAMAUCHI RYOZO , OHASHI KEIJI , FUJIMAKI MUNEHISA
IPC分类号： G02B6/02 , G02B6/036 , G02B6/44
摘要： This dispersion compensating optical fiber comprises an uncovered dispersion compensating optical fiber which contains a core and a cladding and a resin coating which is disposed around the uncovered dispersion compensating optical fiber and which has an adhesive property of 10 g/mm or less. Alternatively, the dispersion compensating optical fiber comprises an uncovered dispersion compensating optical fiber which contains a core and a cladding and a resin coating which is disposed around the uncovered dispersion compensating optical fiber, which has an adhesive property of 1 g/mm or less, and which includes a single or double coating layer and an outer coating layer formed on the surface of the single or double coating layer to have a thickness of 3 mu m or more.

3. 发明专利

GB2374681A Fusion splicing a dispersion compensating optical fibre 未知
公开(公告)号：GB2374681A
公开(公告)日：2002-10-23
申请号：GB0207403
申请日：2002-03-28
申请人： FUJIKURA LTD
发明人： SUZUKI TAKAAKI , SHIMIZU SHOGO , AIKAWA KAZUHIKO , HIMENO KUNIHARU
IPC分类号： G02B6/02 , G02B6/036 , G02B6/255
摘要： Fusion splicing a dispersion compensating optical fiber having a negative dispersion slope, with a connection optical fiber having a different near field pattern from that of the dispersion compensating optical fiber. The connection optical fiber, has a rear field pattern so that a theoretical joint loss in a used wavelength, obtained from an overlap integral of a near field pattern of the dispersion compensating optical fiber after fusion splicing and a near field pattern of the connection optical fiber after fusion splicing is 0.3dB or less, in an unconnected state, a construction enabling connection at a low loss results.

4. 发明专利

DE60008045T2 未知
公开(公告)号：DE60008045T2
公开(公告)日：2004-12-09
申请号：DE60008045
申请日：2000-08-10
申请人： FUJIKURA LTD
发明人： AIKAWA KAZUHIKO , SUZUKI TAKASHI , WADA AKIRA , YAMAUCHI RYOZO , SUZUKI TAKAAKI , MATSUO SHOICHIRO , SAITOU MANABU
IPC分类号： G02B6/036 , G02B6/34 , G02B6/22

5. 发明专利

DE60008045D1 未知
公开(公告)号：DE60008045D1
公开(公告)日：2004-03-11
申请号：DE60008045
申请日：2000-08-10
申请人： FUJIKURA LTD
发明人： AIKAWA KAZUHIKO , SUZUKI TAKASHI , WADA AKIRA , YAMAUCHI RYOZO , SUZUKI TAKAAKI , MATSUO SHOICHIRO , SAITOU MANABU
IPC分类号： G02B6/036 , G02B6/34 , G02B6/22

6. 发明专利

DE60206563T2 未知
公开(公告)号：DE60206563T2
公开(公告)日：2006-11-09
申请号：DE60206563
申请日：2002-03-07
申请人： FUJIKURA LTD
发明人： AIKAWA KAZUHIKO , NAGASAWA YUTAKA , SHIMIZU SHOGO , SUZUKI TAKAAKI , NAKAYAMA MASAKAZU , HIMENO KUNIHARU , YAMAUCHI RYOZO , OHASHI KEIJI , FUJIMAKI MUNEHISA
IPC分类号： G02B6/02 , G02B6/00 , G02B6/028 , G02B6/036 , G02B6/44
摘要： This dispersion compensating optical fiber comprises an uncovered dispersion compensating optical fiber which contains a core and a cladding and a resin coating which is disposed around the uncovered dispersion compensating optical fiber and which has an adhesive property of 10 g/mm or less. Alternatively, the dispersion compensating optical fiber comprises an uncovered dispersion compensating optical fiber which contains a core and a cladding and a resin coating which is disposed around the uncovered dispersion compensating optical fiber, which has an adhesive property of 1 g/mm or less, and which includes a single or double coating layer and an outer coating layer formed on the surface of the single or double coating layer to have a thickness of 3 mu m or more.

7. 发明专利

DE60216704T2 未知
公开(公告)号：DE60216704T2
公开(公告)日：2007-10-04
申请号：DE60216704
申请日：2002-10-18
申请人： FUJIKURA LTD
发明人： AIKAWA KAZUHIKO , SHIMIZU SHOGO , SUZUKI TAKAAKI , SUZUKI RYUJI , NAKAYAMA MASAKAZU , HIMENO KUNIHARU
IPC分类号： G02B6/02 , G02B6/036
摘要： A dispersion compensating fiber, which has a negative dispersion slope with a large absolute value while maintaining the absolute value of the chromatic dispersion, and which has sufficient dispersion slope compensation properties even for the non-zero dispersion shifted optical fiber requiring a large RDS for dispersion compensation. In this dispersion compensating fiber, the radius of a ring core region (3) is set in a range from 6.7 mu m to 10.7 mu m, the radius ratio of a depressed core region (2) relative to a central core region (1) is set in a range from 2.0 to 3.0, and the radius ratio of the ring core region (3) relative to the depressed core region (2) is set in a range from 1.3 to 2.0, the relative refractive index difference of the central core region (1) relative to the cladding (4) is set in a range from +1.00% to +1.80%, the relative refractive index difference of the depressed core region (2) relative to the cladding (4) is set in a range from -1.20% to -1.50%, and the relative refractive index difference of the ring core region (3) relative to the cladding (4) is set in a range from +0.20% to +0.50%.

8. 发明专利

GB2374681B Connection structure for dispersion compensating optical fiber 未知
公开(公告)号：GB2374681B
公开(公告)日：2003-10-29
申请号：GB0207403
申请日：2002-03-28
申请人： FUJIKURA LTD
发明人： SUZUKI TAKAAKI , SHIMIZU SHOGO , AIKAWA KAZUHIKO , HIMENO KUNIHARU
IPC分类号： G02B6/02 , G02B6/036 , G02B6/255
摘要： In fusion-splicing a dispersion compensating optical fiber having a negative dispersion slope, with a connection optical fiber having a different near field pattern from that of the dispersion compensating optical fiber, if for the connection optical fiber, one is selected such that a theoretical joint loss in a used wavelength, obtained from an overlap integral of a near field pattern of the dispersion compensating optical fiber after fusion splicing and a near field pattern of the connection optical fiber after fusion splicing is presumed to be 0.3 dB or less, in an unconnected state, a construction enabling connection at a low loss results.

9. 发明专利

DE60120088T2 未知
公开(公告)号：DE60120088T2
公开(公告)日：2006-12-28
申请号：DE60120088
申请日：2001-07-25
申请人： FUJIKURA LTD
发明人： AIKAWA KAZUHIKO , SUZUKI TAKAAKI , HIMENO KUNIHARU
IPC分类号： G02B6/036

10. 发明专利

DE60120088D1 未知
公开(公告)号：DE60120088D1
公开(公告)日：2006-07-06
申请号：DE60120088
申请日：2001-07-25
申请人： FUJIKURA LTD
发明人： AIKAWA KAZUHIKO , SUZUKI TAKAAKI , HIMENO KUNIHARU
IPC分类号： G02B6/036

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