Fiber splicing is the procedure of permanently joining two fibers together. Unlike fiber connectors, which are equipped 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 a sleeve with many mechanical mechanism. You will definitely get worse insertion loss and back reflection in SZ stranding line in comparison to fusion splices (the next type our company is introducing below). Mechanical splicing is usually employed for emergency repairs and fiber testing. You can check out some mechanical splice products here.
The 2nd type splicing is named fusion splicing. In fusion splicing, two fibers are actually welded (fused) together by an electric powered arc. Fusion splicing is easily the most traditionally used method of splicing as it provides for the lowest insertion loss and basically no back reflection. Fusion splicing provides the most reliable joint between two fibers. Fusion splicing is done by an automatic machine called fusion splicer (fusion splicing machines). We are going to focus on fusion splicers in this particular tutorial.
While we said above, fusion splicer may be the machine employed to weld (fuse) two optical fibers together. This procedure is known as fusion splicing. The fiber ends are prepared, cleaved, and put into alignment fixtures on 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 have to either choose factory recommended settings or you set the splicing parameters yourself. You will find five simple measures to fusion splicing by using a splicing machine.
There are many kinds of fusion splicing machines available, varying in features and capability, and cost. So you must do your research before making a decision. The subsequent section describes different fiber alignment technologies in various kinds fusion splicers.
Optical fiber core alignment (also referred to as “profile alignment”) optical fiber ribbon machine use multiple cameras to examine both the cleaved fibers before fusing and permit for multiple axis movement in the fibers. The two fibers are illuminated from two directions, 90 degrees apart. From your multiple video cameras, the appliance recognizes the core of your 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 including splice some time and temperature can be highly customized. Such high-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 line up the fiber cores so maximum light passes from a single fiber to the other, ensuring minimal splice loss.
This gives for precise fiber alignment, creating a typical splice reduction in only .02dB. This degree of precision is required for those single mode fiber applications and in addition enhances performance of multimode fiber. Ribbon splicers typically use core alignment.
Core alignment fusion splicers have always been the preferred method for CATV installations, backbone networks, specialty fiber applications, and optical components manufacturing largely szzstrand of their high accuracy and reliability. The next picture shows a AFL FSM-60S core alignment fusion splicer.
More optical fiber ribbon machine employ clad alignments to align the fibers for splicing. The fibers sit in the holder or V-groove and they are lined up “physically”, in accordance with the outer diameter in 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). Simply because the outer diameters are aligned, doesn’t mean the cores will likely be perfectly aligned. Such units typically produce higher loss splices and lack the features and suppleness of higher end splicers.
Clad alignment splicers also provide multiple cameras only provide for single axis movement of your fiber. Alignment is aided by a fixed v-groove. The normal loss for this particular splice is .05dB. Clad alignment splicers are the best best for multimode applications. The next picture shows a AFL FSM-16S cladding alignment splicing machine.