Chromatic dispersion characteristics of optical fibre submarine cable under deep sea environmental conditions

First chromatic dispersion characteristics of pure silica-core matched cladding single-mode fibre submarine cable under deep sea environmental conditions are presented. It is confirmed that variations of zero-dispersion wavelength and dispersion at 1.55 mu m wavelength of the cable under hydraulic pressure (0-800 atm), tension (0-6 tons) and temperature change (3-30 degrees C) are less than +or-0.6 nm and +or-0.06 ps/km/nm, respectively.<>