| 摘要 |
Cold fiber pictures are taken of the end portions of two optical fibers before and after fusion splicing. From the outer contours of the fibers, i.e. of the their claddings, in the pictures a type of core deformation is determined. Based on the core deformation type, in the pictures a the magnitude of a corresponding typical deformation is determined, by only measuring the position of outer contours in relation to each other. The magnitude of the core deformation can then be determined and thus an approximative shape of the deformed cores. From this shape a splice loss estimation is calculated, which is suffficiently accurate for many spliced and thus only by evaluating the cladding deformation as seen in cold images. <IMAGE> |
