| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical transmission system which reduces the influence of a dispersion slope of an optical transmission line. SOLUTION: The surface of an optical fiber 10 is coated with a liquid crystal polymer 13 having a coefficient of expansion of a code reverse from the code of quartz of the optical fiber 10, by which the physical expansion and contraction by a temperature change are suppressed and the stabilization of the propagation time of signals is thereby realized. More particularly, the dependence of a secondary variance value on temperature is considered, by which the deterioration in the transmission line by a temperature fluctuation is reduced. The temperature on the periphery of the optical fiber for dispersion compensation existing within a station house is precisely controlled by a temperature control circuit, by which the optical fiber housing device for suppressing the sum of the dependence of the dispersion slope of the optical fiber for transmission outside the station house and the optical fiber for dispersion compensation within the station house on temperature is provided as well. COPYRIGHT: (C)2004,JPO |
