Single Fiber Fusion Splicing Procedure
Single Fiber Fusion Splicing Procedure
1. Tools:
Fusion Splicer, fiber cleaver, fiber, fiber stripper, 99% industry acholho, swab or wipes, splicing protection tube
2. Arc Checking/calibration
1）Purpose: make the fusion splicer adapt to the environment
2）Reason：Better environment adaption, better splicing result
3. Calibration Procedure：
1), Load the stripped cleaned fiber in machine, choose the “arc calibration” , if failed the first time, repeat the process till show “OK”
2) ,Without fiber, press” ARC”, during the process will show” discharge to strong, discharge too weak”, discharge it till it shows “OK”
When require to do the arc calibration
①Different locations if distance over 300km
②Altitude changes over 1000m
③Change the electrodes must do the calibration
④When the latitude changes
3 Confirm the fiber type to be spliced and the splice protection tube type
1）fiber type：In fusion splicing mode choose ”SM、MM、DS、NZ” ect based on the fiber to be spliced
2）splice fusion protection tube type: In heat mode choose 40mm or 60mm or the version matched the case
4 Fiber Preparation and Cleave
Fiber consist of fiber core, coating and cladding, the fiber core to be spliced. Strip the fiber first and clean it then cleave it. The cutting length is determined according to the above parameters. The cleaver has a size scale. Pay attention to keeping the cutting end face vertical. The error is generally 1 ° -2 °. Note that it must be cleaned and the splice protection tube must be on before cutting.
5. Fusion Splicing
After fiber is cleaved, put the fiber into the fiber fusion splicer, and place it at a position halfway between the straight line of the end surface of the V-shaped groove and the straight line of the center of the electrode rod. Then put the optical fiber pressure plate, put down the presser foot (the other side is the same), cover the windproof cover, press the SET button to start splicing, The enlarged two optical fibers appears on the screen begin to fuse after focusing, aligning a series of positions, and adjusting the focal length. the whole process takes about 15 seconds (different fusion splicers fusing time are different),
After the fusion splicing is completed, before place the heat splice protection tube in the heating slot, the spliced fiber should be put in the center of the splice tube without bending and pulling, close the cover, press HEAT, the indicator below will light up for about 90 seconds, the machine will warn that the heating process is completed, at the same time the indicator will flash continuously, take it and cool down, so a complete splicing process is completed.
6. Organize
Organize the tool and put it in the designated position and clean up the garbage. Pay attention to the small optical fiber tip when cleaning
7 Problems that are often noticed during operation
(1) Cleaning, the inside and outside of the fiber fusion splicer, the fiber itself, the important part is the V-groove, fiber presser foot and reflective lens and other parts.
(2) When cutting, ensure that the cutting end face is 89 ° ± 1 °, which is approximately vertical. During the process of placing the cut fiber at the specified position, the end face of the fiber should not touch any place. If it touches, we need to clean and cut again: Emphasize cleaning before cutting!
(3) When putting the optical fiber in its position, do not go too far or too close, 1/2 position, practice the proficiency!
(4) During the whole splice fusion process, do not open the windproof cover
(5) Heating the heat shrinkable tube, the scientific name of the process is the reinforcement of the splicing part. When heating, the fiber fusion splicing part must be placed in the middle and a certain tension should be added to prevent bubbles and insufficient fixing during the heating process. The heating process and the fusion process of the optical fiber can be performed at the same time. When taking out after heating, avoid touching the heated part to prevent a safety accident.
(6) When organize tools, watch out the breaking the optical fiber head to prevent danger. The optical fiber is glass fiber, very thin and very stiff.