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Laser cleaving of glass fibers and glass fiber arrays

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7 Author(s)
Van Steenberge, G. ; Dept. of Inf. Technol., Ghent Univ., Gent, Belgium ; Geerinck, P. ; Van Put, S. ; Watte, J.
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An ultraviolet (UV)-excimer-laser-based cleaving procedure for silica fiber has been developed that enables automated cleaving for high-volume production of fiber-optic assemblies. A selective ablation of the glass in the form of a small rectangular cavity serves as a fracture initiator when the fiber is put under stress. The position of the UV-excimer-laser-induced scratch is very precise. The system provides high-quality cleaves on single-fiber and ribbon configurations. The end angle of the cleaved optical fiber is measured using a noncontact optical interferometer system and was 0.85° for perpendicular cleavages. Insertion loss after splicing is in the range of 0.03 dB, which is compatible with mechanical-cleaved fibers.

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Lightwave Technology, Journal of  (Volume:23 ,  Issue: 2 )