A diamond tip is used to make a small cut on the outer diameter of the fiber, and the fiber is then broken by applying longitudinal force along the optical axis. Any undue strain on the fiber is avoided. This results in scratch-free surfaces that are perfectly perpendicular to the optical axis.
V-groove jigs allow a secure mounting in a fixed position. With an additional mounting kit polyimide fibers can also be cleaved directly without having to remove the polyimide buffer, which would be costly and time consuming.
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