Which fusion splicer alignment method uses a camera to align the fibers?

The profile alignment system (PAS) is a sophisticated method used in fusion splicing that involves utilizing a camera to precisely align the optical fibers. This method takes advantage of visual feedback to ensure that the fibers are correctly positioned relative to one another for optimal fusion.

In this alignment technique, the camera captures the profile of the fiber ends and analyzes their shapes, allowing for more accurate alignment even when the fibers may not have perfect cleaving or geometry. This technological enhancement is essential in minimizing splice loss, thereby improving the performance of optical networks.

Other alignment methods, such as manual or simple alignment systems, typically rely on physical adjustment and fiber positioning without the aid of optical feedback from a camera. These methods can be less precise, especially in challenging splicing situations, which is why the profile alignment system is favored for achieving high-quality, low-loss splices.