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Chromatic Dispersion Temperature Dependence Of Matched-Clad, Depressed-Clad, And Dispersion-Shifted Single-Mode Fibers

The chromatic dispersion of four commercially available single-mode fibers was investigated over a temperature range from -40° C to +65°C. Values for zero-dispersion wavelength temperature coefficient were ~ 0.020 nm/° C for two depressed-clad fibers, 0.022 nm/° C for a matched-clad fiber, and 0.030 nm/° C for a dispersion-shifted fiber. Such a small temperature dependence would not pose a serious problem for current installation. However, future high bit-rate systems should be designed to minimize this effect.