| 摘要 |
PROBLEM TO BE SOLVED: To provide the optical soliton transmission line through which an optical soliton pulse signal is sent stably for a long distance. SOLUTION: In a first block, abnormal dispersion is applied to an optical fiber 11, normal dispersion is applied to a dispersion compensation device 21 and the mean dispersion in total of the above two is set to become normal dispersion. In a 2nd block, abnormal dispersion is applied to an optical fiber 12, normal dispersion is applied to a dispersion compensation device 22 and the mean dispersion in total of the above two is set to become abnormal dispersion. The 1st and 2nd blocks are connected to form one system and pluralities of the systems are provided in succession to prevent deterioration in an optical soliton pulse signal. |
