The important Point on Choosing fiber fusion splicer

About the fiber fusion splicer you need to know

Optical cable fusion splicer is also called optical fiber fusion splicer. Optical fiber fusion splicer is mainly used in optical communication, construction and maintenance of optical cable. The two ends of the optical fiber are melted by releasing the arc, and at the same time, the collimation principle is used to advance smoothly, so as to realize the coupling of the optical fiber mode field. Note: This fiber refers to each fiber in the cable.

 The fusion splicer is mainly used in major telecom operators, engineering companies, private networks of enterprises and institutions, etc. It is also used to produce optical fiber splicing for passive and active components and modules. Now for the convenience of construction, a hand-held optical fiber fusion splicer has been developed, as well as a ribbon optical fiber fusion splicer specially used for splicing ribbon optical fibers. 

Picture Copy Right @ BAUDCOM

*When buying a fusion splicer, you need to pay attention to several points.*

 1.Light and easy to handle

 2.Low loss ,automatic welding

 3.Fast splicing speed and heating speed

 4.Splice loss

 5.And how many motors?

 6.Splice modes and fusion groups

 7.How many welding times?

 

Usually this information, the supplier will tell you with beautiful pictures, like the one below. I think this kind picture is much helpful to shopping.

Picture copy right @ BAUDCOM

The process and steps of optical fiber splicing:

Strip the fiber optic cable and fix the fiber optic cable to the fiber reel frame. Common optical cables are layered, skeleton and central tube type optical cables. Different optical cables need to be stripped in different ways. After stripping, the optical cables should be fixed to the fiber reel frame.

Split the fiber through the heat shrink tube. Separate the fibers of different bundles and colors and pass them through the heat-shrinkable tube. After the splicing is complete, the fiber splice can be protected with heat shrink tubing.

Turn on the power of the fusion splicer and select the appropriate fusion method. The power supply of the fusion splicer has two types: AC and DC, which should be switched reasonably according to the type of power supply. We know that the fibers used by CATV include conventional single-mode fibers and dispersion-shifted single-mode fibers, and the working wavelengths are also 1310nm and 1550nm, so we need to choose the appropriate fusion splicing method according to the fibers and working wavelengths used in the system.

Prepare the fiber end face. The quality of the fiber end face will directly affect the connection quality, so before fusion splicing, you must first make a qualified end face. Use a special stripping tool to peel off the coating layer, and then wipe the bare fiber with a clean linen cloth or cotton dipped in alcohol for several times. Use a precision fiber cleaver to cut the fiber. For 0.25nm (outer coating) fiber, cut The length is 8mm-16mm. For 0.9mm (outer coating) fiber, the cutting length can only be 16mm.

Place the fiber. Put the fiber in the V-shaped groove of the fusion splicer, carefully press the fiber clamp and the fiber clamp, set the position of the fiber in the clamp according to the fiber cutting length, and put it into the draft shield correctly.

Connect the optical fiber. After pressing the splicing key, the fibers move toward each other. During the moving process, a short discharge is generated to clean the surface of the fiber. When the gap between the fiber end faces is appropriate, the fusion splicer stops moving toward each other, and the initial gap is set. The fusion splicer measures and displays the cut. angle. After the initial gap setting is completed, the core or cladding alignment is performed, then the fusion splicer reduces the gap (final gap setting), the arc generated by the high voltage discharge fuses the left fiber into the right fiber, and finally the microprocessor Losses are calculated and displayed on the display. If the estimated loss value is higher than expected, you can discharge again and the splicer will still calculate the loss after discharge.

Remove the fiber and reinforce the fiber with a heater. Open the windshield, connect the machine and store the welding data at the same time. These include: splice mode, data, estimated loss, etc. Take the fiber out of the fusion splicer, place the heat shrink tube in the center of the bare fiber, put it in the heater to heat, and then take out the fiber from the heater. During operation, do not touch the heat shrink tube and the ceramic part of the heater due to the high temperature.

Coiled and fixed. Put the spliced ​​optical fiber on the optical fiber storage tray, fix the optical fiber, the storage tray, the splice box, the terminal box, etc., and the optical fiber fusion is completed.

The vulnerable parts of the optical fiber fusion splicer are the electrodes for discharge, and the suggestions provided by each manufacturer are also different, but basically it is necessary to replace the electrodes when the discharge is 4000 to 5000 times. Or do it yourself, re-grinding, However, the length will change, and the corresponding welding parameters will also be modified.