Broadband optical transmission with non-zero dispersion fiber

Study is to optimize G.655 fiber dispersion coefficient, dispersion slope, effective area, the operating wavelength range. In order to better meet the DWDM system transmission rate, channel spacing, the changing needs of working wavelength, the ITU Study Group 15 in January 2003 to the 2000 edition of ITU-T G.655 A, B two kinds of fiber, and further fine divided into the ITU-TG.655A, B, C three kinds of fiber. Subdivision on the grounds that they only support G.655A fibers and above 200GHz spacing DWDM, 10Gbit / s system transmission 400km in the C-band applications, it can support 10Gbit / s based DWDM systems. G.655B fiber support and below 100GHz spacing DWDM in C and L band 10Gbit / s 3000km transmission system applications. G.655C eliminate the 1385nm optical fiber near the water peak, the system can work in the 1360 ~ 1530nm, both to meet the spacing of 100GHz and below the C and L-band DWDM applications, but also make N × 10Gbit / s system transmission 3000km, or N × 40Gbit / s system transmission over 80km. However, G.655 fiber in N × 10Gbit / s DWDM system applications, it is found that there is a narrow operating wavelength, dispersion slope and other issues, in order to solve the problem of G.655 fiber, optical fiber manufacturers all over the world to carry out a well-known broadband optical transmission with non-zero dispersion shifted fiber research in recent years has developed this new type of fiber, that broadband optical transmission with non-zero dispersion shifted fiber.