In the laser-assisted fiber cleaving process, an ultrashort, high-energy laser is used to introduce a flaw on the optical fiber surface, and then the fiber is cleaved under a tension or bending load. The quality of the cleaved end depends on the crack propagation from the artificial flaw. To understand the cleaving process and the effects of flaw parameters on cleaving quality, crack propagation is modeled by considering a pre-existing surface flaw using a graph-based finite element method (GraFEA). GraFEA is based on the nonlocal multiple cracking simulation framework for brittle and quasi-brittle materials. First, a three-point bending test is conducted to calibrate material parameters in GraFEA for commercial fused silica glass. Subsequently, the model is validated by four-point bending and ring-on-ring tests. After validation, the fiber cleaving process is investigated by parametric simulations in which different loading types (bending or tension) are considered. Finally, a beneficial process window is obtained and recommended for improved cleaving quality.
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November 2024
Research Article|
September 17 2024
Laser fiber cleave: Modeling and fundamentals
Lei Mu;
Lei Mu
(Conceptualization, Formal analysis, Investigation, Methodology, Supervision, Visualization, Writing – original draft, Writing – review & editing)
1
Science and Technology Division, Corning Incorporated
, Corning, New York 14831
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Sachin Velayudhan
;
Sachin Velayudhan
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Software, Validation, Writing – original draft, Writing – review & editing)
2
J. Mike Walker’66 Department of Mechanical Engineering, Texas A&M University
, College Station, Texas 77840
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Lei Yuan
;
Lei Yuan
(Conceptualization, Funding acquisition, Project administration, Resources, Supervision, Writing – original draft, Writing – review & editing)
1
Science and Technology Division, Corning Incorporated
, Corning, New York 14831
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Chunfeng Zhou
;
Chunfeng Zhou
(Conceptualization, Funding acquisition, Project administration, Resources, Supervision, Writing – original draft, Writing – review & editing)
1
Science and Technology Division, Corning Incorporated
, Corning, New York 14831
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Chaolan He;
Chaolan He
(Conceptualization, Data curation, Investigation, Methodology, Validation, Visualization, Writing – original draft, Writing – review & editing)
1
Science and Technology Division, Corning Incorporated
, Corning, New York 14831
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Jonathon Nudd
Jonathon Nudd
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Validation, Writing – original draft, Writing – review & editing)
1
Science and Technology Division, Corning Incorporated
, Corning, New York 14831
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J. Laser Appl. 36, 042014 (2024)
Article history
Received:
June 27 2024
Accepted:
August 20 2024
Citation
Lei Mu, Sachin Velayudhan, Lei Yuan, Chunfeng Zhou, Chaolan He, Jonathon Nudd; Laser fiber cleave: Modeling and fundamentals. J. Laser Appl. 1 November 2024; 36 (4): 042014. https://doi.org/10.2351/7.0001549
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