What is the working principle of the optical fiber fusion splicer?

The working principle of the optical fiber fusion splicer is that when parallel light is irradiated on the optical fiber from the side, due to the refraction of the optical fiber, the light and dark images between the core and the cladding and the cladding and the air can be observed, and the level of the optical fiber can be observed by moving the microscope. And vertical screen.

It is focused on the charge coupler through the objective lens to obtain the analog video signal, and then through the analog/digital conversion circuit, it becomes a digital signal. The image is processed and recognized by the microprocessor in the fusion splicer, so that the alignment of the core and the cladding can be visually displayed.

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