| 摘要 |
PROBLEM TO BE SOLVED: To provide a crosstalk measuring device capable of measuring crosstalk between modes in optical communication.SOLUTION: A crosstalk measuring device measures crosstalk between modes by the difference of intensity between signal light beams and crosstalk light beam by inputting the signal light beams in which at least one of a modulation frequency or modulation data is different per mode. The crosstalk measuring device comprises: optical transmitting means that generates and outputs multiple modulated signal light beams modulated by different electric signals; optical receiving means that receives output light beams which were output by an object to be measured after the modulated signal light beams output by the optical transmitting means have been input to the object to be measured and converted into different modes; and crosstalk calculation means that calculates crosstalk between modes of the object to be measured on the basis of the modulated signals of the output light beams received by the optical receiving means. |
