7 April 2008 Finite element formulation for self-writing of polymer optical fiber sensors
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Abstract
Several alternative fabrication methods for optical fiber sensors have recently been demonstrated including micro-machining, surface relief etching and self-writing of photopolymerizable resins. In this paper, a multi-physics finite element model of sensor self-generation through optical confinement in a photopolymerizable gel is presented that accounts for the dynamics of photopolymerization, and the opto-mechanical interactions of densification, residual strains, and strain-optic effects. In the future, this model will be applied to predict the geometry and index distribution of a micro-optical fiber sensor. The index of refraction and the material density of the photopolymerizable gel as a function of optical intensity and time will be experimentally determined to characterize the dynamics of the particular photopolymerizable resin and used as inputs for the finite element model.
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Aliesha D. Anderson, Aliesha D. Anderson, Kara J. Peters, Kara J. Peters, } "Finite element formulation for self-writing of polymer optical fiber sensors", Proc. SPIE 6933, Smart Sensor Phenomena, Technology, Networks, and Systems 2008, 69330X (7 April 2008); doi: 10.1117/12.776273; https://doi.org/10.1117/12.776273
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