The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 2005
Filed:
Jan. 14, 2004
Shuqiang Zhang, Wuhan, CN;
Qingrong Han, Wuhan, CN;
Yuqing Cao, Wuhan, CN;
Tiejun Wang, Wuhan, CN;
Raadj Matai, Wuhan, CN;
Jie Luo, Wuhan, CN;
Shuqiang Zhang, Wuhan, CN;
Qingrong Han, Wuhan, CN;
Yuqing Cao, Wuhan, CN;
TieJun Wang, Wuhan, CN;
Raadj Matai, Wuhan, CN;
Jie Luo, Wuhan, CN;
Yangtze Optical Fibre and Cable Co. Ltd., Wuhan, CN;
Abstract
The invention relates to a low dispersion slope dispersion-shifted single-mode fiber for large capacity transmission comprising a core and a cladding. Said fiber is characterized in that said core has three to five core segments having different refractive index profiles, and said cladding has four to six cladding segments. The total dispersion slope of said fiber at 1550 nm is less than 0.060 ps/nm·km, the zero dispersion wavelength is less than 1420 nm, the effective area ranges from 55 μmto 65 μm, and the dispersion in the region of 1530 nm˜1565 nm ranges from 5.0 ps/nm·km to 12.0 ps/nm·km. The fiber has low dispersion slope, moderate dispersion, low attenuation, and excellent bend resistance performance. It is suitable for a high-speed (10 Gbits/s and 40 Gbits/s), large capacity, and long distance DWDM system. Therefore, not only the non-linear problem that fazes high-speed communication is solved effectively, but also the DWDM transmission at 10 Gbits/s can be realized within a wider wavelength range. In addition, low dispersion slope is advantageous for comprehensive management of dispersion, so that the requirement for long distance non-electric relay can be fulfilled.