发明名称 |
Dispersion compensating optical fiber and optical transmission line |
摘要 |
<p>The present invention relates to an optical transmission line suitably used for a large-capacity high-speed WDM optical transmission system, and an optical fiber suitably used for such an optical transmission line. The optical transmission line is formed by connecting a single-mode optical fiber (SMF) and a dispersion compensating optical fiber (DCF). The dispersion compensating optical fiber has a dispersion value DDCF (unit: ps/nm/km) and dispersion slope SDCF (unit: ps/nm<2>/km) falling within the ranges of -82 </= DDCF </= -29 and 0.0023 x DDCF </= SDCF </= 0.033 + 0.0015 x DDCF at a wavelength of 1,550 nm, respectively. At the wavelength of 1,550 nm, the transmission loss is 0.5 dB/km or less. Letting LDCF be the length of the dispersion compensating optical fiber, and LSMF be the length of the single-mode optical fiber, the value LDCF/(LDCF + LSMF) in the optical transmission line is 0.2 to 0.4. This optical transmission line can suppress the nonlinear optical phenomenon and is suitable to long-distance large-capacity transmission because the optical transmission line has a small transmission loss and low nonlinear index. <IMAGE></p> |
申请公布号 |
EP1072909(A2) |
申请公布日期 |
2001.01.31 |
申请号 |
EP20000115494 |
申请日期 |
2000.07.18 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
TSUKITANI, MASAO;SASAOKA, EISUKE;YANADA, EIJI |
分类号 |
G02B6/036;(IPC1-7):G02B6/16 |
主分类号 |
G02B6/036 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|