What causes high fusion losses?

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What causes high fusion losses?

2023-09-22

In the daily use of the fusion welding machine, someone complain that: just recently maintained the machine, electrodes are replaced with new ones, and discharge correction has been done. Why the fiber fusion loss still not reduced?

This situation is often closely related to the user's operating practices. A fusion splicer is a precision instrument that splices optical fibers with minimal loss under optimal operating conditions, but only if there is a flat, clean cut end-face of fiber, and achieving this operating condition requires standard operating procedures and ways.

Today, we will learn about the reasons that may lead to fiber splicing failures.

First, there are possible reasons for pollution:

1, Didn't clean the fibers very well, stripping fiber directly after the hand.

(Clean the optical fiber with anhydrous alcohol after stripping the fiber coating layer)

2, The use of a contaminated cutting knife

(Use a cotton swab dipped in alcohol to wipe the cutting knife )

3, Wiped the fiber again after cutting

(Never wipe the optical fiber after cutting)

4, The V-groove accumulates dust, which leads to unstable optical fiber movement and high fusion splicing loss.

(Cleaning V-groove, use a cotton swab soaked in alcohol to clean the upper surface and bottom of the V-shaped groove, and finally wipe the alcohol in the V-shaped groove with a dry cotton swab. Be careful not to leave lint.)

5, Dusts on the fiber clamp chip will lead to unstable fiber clamping and affect the quality of the splice.

(The fiber presser foot should be clean regularly. )

Second, the reasons that may lead to fiber fragmentation are:

1, Poor cutting quality, directly leading to fragmentation

(Rotate to a new knife surface, or adjust the blade height)

2, The fiber optic end face touches something else

(After cutting the fiber, do not let the fiber optic end face touch any more objects )

Third, the causes of poor fiber cutting are:

1, The optical fiber is not placed perpendicular to the cutting knife surface

(Make sure to place the optical fiber in the slot of the cutting knife fixture)

2, The fiber optic coating is placed on the rubber mat.

(Put the fiber back a bit, what's left on the rubber mat should be the part with the coating stripped off)

3、No force or too much force during the cutting process

(With practice, you'll find that suitable range of force.)

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