| 摘要 |
PURPOSE:To suppress the deterioration of a quenching ratio in the stage of connecting optical fibers, by enabling the measurement of the stripe pattern of scattered light and the monitoring of the intensity of output light. CONSTITUTION:The connection of optical fibers (SP) 5, 7 for retaining plane of polarization is accomplished by rotating the SP fiber 7 while observing the intensity of the scattered light shown in the figure from a y direction and connecting the fibers where the intensity of the scattered light attains the same coupling length as shown by a broken line. Then the double refractive index characteristics of the SP fibers are automatically matched, and the connection at the min. quenching ratio is executed. |
