Temperature dependence of chromatic dispersion in various types of opticalfiber

The temperature dependence of chromatic dispersion is examined for various types of fiber. Its coefficient is found to depend strongly on the dispersi on slope. Dispersion-flattened fiber has a significantly low coefficient of -0.0005 (ps/nm/km)degrees C, compared with -0.0038 (ps/nm/km)/degrees C fo r large-core nonzero dispersion-shifted fiber. Transmission lines with low dispersion slopes consisting of pure silica core fiber and dispersion-compe nsating fiber also exhibit low coefficients of less than -0.001 (ps/nm/km)/ degrees C because of their compensating effects. (C) 2000 Optical Society o f America OCIS codes: 060.2300, 060.2270, 060.2280.