Fiber splicing is the method of permanently joining two fibers together. Unlike fiber connectors, which are designed for easy reconfiguration on cross-connect or patch panels.
Mechanical splicing doesn’t physically fuse two optical fibers together, rather two fibers are held butt-to-butt in the sleeve with a bit of mechanical mechanism. You will definately get worse insertion loss and back reflection in Optical fiber coloring machine in comparison to fusion splices (the second type we have been introducing below). Mechanical splicing is mostly used for emergency repairs and fiber testing. You should check out some mechanical splice products here.
The second type splicing is known as fusion splicing. In fusion splicing, two fibers are actually welded (fused) together by a power arc. Fusion splicing is considered the most widely used approach to splicing mainly because it provides for the lowest insertion loss and hardly any back reflection. Fusion splicing offers the most trustworthy joint between two fibers. Fusion splicing is done by an automatic machine called fusion splicer (fusion splicing machines). We shall give attention to fusion splicers in this particular tutorial.
As we said above, fusion splicer will be the machine used to weld (fuse) two optical fibers together. This method is known as fusion splicing. The fiber ends are prepared, cleaved, and placed into alignment fixtures about the fusion splicer. In the press of the mouse, the fiber ends are heated with electrodes, brought together, and fused.
Fusion splicers are automatic machines that you should either choose factory recommended settings or perhaps you set the splicing parameters yourself. There are five basic steps to fusion splicing using a splicing machine.
There are lots of models of fusion splicing machines available, varying in features and capability, and price. So you should do your due diligence before making a decision. The following section describes different fiber alignment technologies in various kinds of fusion splicers.
Optical fiber core alignment (also known as “profile alignment”) FTTH cable production line use multiple cameras to examine the two cleaved fibers before fusing and let for multiple axis movement of your fibers. The 2 fibers are illuminated from two directions, 90 degrees apart. In the multiple video cameras, the equipment recognizes the core of the fibers and aligns them automatically using movable stages.
Core alignment splicers are high-end units allow users to save separate programs or recipes where factors such as splice time and temperature could be highly customized. Such top end fusion splicers magnify and visually display the splice, and employ active core-alignment to line up the fibers. Light injection technology and imaging software align the fiber cores so maximum light passes from a fiber on the other, ensuring minimal splice loss.
This provides for precise fiber alignment, creating a typical splice loss of only .02dB. This amount of precision is necessary for many single mode fiber applications and also enhances performance of multimode fiber. Ribbon splicers typically use core alignment.
Core alignment fusion splicers have always been the most well-liked technique for CATV installations, backbone networks, specialty fiber applications, and optical components manufacturing largely szzstrand with their high accuracy and reliability. The subsequent picture shows a AFL FSM-60S core alignment fusion splicer.
More Sheathing line employ clad alignments to align the fibers for splicing. The fibers sit inside a holder or V-groove and so are arranged “physically”, based on the outer diameter of the fiber’s cladding. These splicing units are subject to the fibers’ glass geometry characteristics and tolerances (Clad Diameter, Clad Non-Circularity, and Core-to-Clad Concentricity). Because the outer diameters are aligned, doesn’t mean the cores is going to be perfectly aligned. Such units typically produce higher loss splices and lack the features and adaptability of high end splicers.
Clad alignment splicers have multiple cameras but only enable single axis movement of the fiber. Alignment is aided by way of a fixed v-groove. The typical loss for this type of splice is .05dB. Clad alignment splicers work best suited for multimode applications. These picture shows a AFL FSM-16S cladding alignment splicing machine.