Cleaning the v-groove of the fusion splicer
The function of the high precision surface of the v-groove can be influenced by dirt.
Whenever there is a consistent problem with fiber offset, try cleaning the surface as
follows.
To clean the v-groove proceed as follows:
Put a fiber in a fiber holder, strip clean and cleave it.
Use this fiber to scratch the v-grove at an angle several times back and forth.
Then put the fiber in place (like you would do a splice) and check the removed
dirt via the camera. This procedure should be repeated until there is no dirt
visible to the camera.
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