| 摘要 |
PURPOSE:To obtain the connection losses of optical connectors of optical fibers, whose Rayleigh scattering coefficient is unknown accurately, by obtaining the Rayleigh scattering coefficient by using a reference cord, offsetting the obtained Rayleigh scattering coefficient, and obtaining the connection losses of the optical connectors. CONSTITUTION:An upper plug 3, which is attached to an upper side core 1, is connected to an optical connector 12 of an optical fiber 10, which is a reference cord. A lower plug 4, which is attached to a lower side core 2, is connected to an optical connector 13 of an optical fiber 11, which is a reference cord. The pulse test is conducted from a station A. Then the referece cords are reversed, the upper plug 3 and the optical connector 13 are connected, and the lower plug 4 and the optical connector 12 are connected. Then the pulse test is conducted from the station A again. From these measurements, Rayleigh coefficients beta0 and beta'0 of the side cores 1 and 2 are obtained. The upper plug 3 and the lower lower plug 4 are directly connected, and the pulse test is conducted from the station A. Then the connection losses of the optical connectors are obtained. |
