The most common single-core fiber fusion splicer is basically the same in usage:
1. Strip the optical cable and fix it to the fiber rack. Common optical cables include stranded, skeleton and central bundled tube optical cables. Different optical cables require different stripping methods. After stripping, the optical cable should be fixed to the fiber rack.
2. Pass the stripped optical fibers through the heat shrink tubes. Optical fibers with different bundles and different colors should be separated and passed through the heat shrink tubes respectively.
3. Turn on the power of the fusion splicer and select the appropriate fusion method. Common types and specifications of optical fibers include: SM dispersion non-shifted single-mode fiber (ITU-T G.652), MM multimode fiber (ITU-T G.651), DS dispersion-shifted single-mode fiber (ITU-T G.653), NZ non-zero dispersion-shifted fiber (ITU-T G.655), BI bend-resistant fiber (ITU-T G.657), etc. The appropriate fusion method should be selected according to the different types of optical fibers. The latest optical fiber fusion splicer has the function of automatically identifying optical fibers, which can automatically identify various types of optical fibers.
4. Prepare the fiber end face. The quality of the fiber end face will directly affect the quality of the fusion splicing, so a qualified end face must be prepared before fusion splicing. Use a special stripping tool to strip the coating layer, and then use a clean linen cloth or cotton soaked in alcohol to wipe the bare fiber several times. Use a precision fiber cleaver to cut the fiber. For 0.25mm (outer coating) fiber, the cutting length is 8mm-16mm, and for 0.9mm (outer coating) fiber, the cutting length can only be 16mm.
5. Place the fiber. Place the fiber in the V-groove of the fusion splicer, carefully press the fiber pressure plate and fiber clamp, set the position of the fiber in the pressure plate according to the fiber cutting length, and put it correctly in the windshield.
6. Connect the fiber. After pressing the connection button, the optical fibers move toward each other. During the movement, a short discharge is generated to clean the fiber surface. When the gap between the fiber end faces is appropriate, the fusion splicer stops moving toward each other, sets the initial gap, and the fusion splicer measures and displays the cutting angle. After the initial gap setting is completed, the core or cladding alignment is performed, and then the fusion splicer reduces the gap (the final gap setting). The arc generated by the high-voltage discharge melts the left fiber into the right fiber. Finally, the microprocessor calculates the loss and displays the value on the display. If the estimated loss value is higher than expected, you can press the discharge key to discharge again. After the discharge, the fusion splicer will still calculate the loss.
7. Take out the optical fiber and use the heater to reinforce the fiber fusion point. Open the windshield, take the optical fiber out of the fusion splicer, move the heat shrink tube to the position of the fusion point, put it in the heater to heat, and take out the optical fiber from the heater after heating. During operation, due to the high temperature, do not touch the ceramic part of the heat shrink tube and the heater.
8. Coil and fix the fiber. Coil the spliced optical fiber onto the optical fiber receiving tray, fix the optical fiber, receiving tray, joint box, terminal box, etc., and the operation is completed.