Measurements of stress-optic coefficient and Young's modulus in PMMA fibers drawn under different conditions

Marcin K. Szczurowski; Tadeusz Martynkien; Gabriela Statkiewicz-Barabach; Lutful Khan; David J. Webb; Chenchun Ye; Janice Dulieu-Barton; Waclaw Urbanczyk

doi:10.1117/12.855089

14 May 2010 Measurements of stress-optic coefficient and Young's modulus in PMMA fibers drawn under different conditions

Marcin K. Szczurowski, Tadeusz Martynkien, Gabriela Statkiewicz-Barabach, Lutful Khan, David J. Webb, Chenchun Ye, Janice Dulieu-Barton, Waclaw Urbanczyk

Author Affiliations +

Proceedings Volume 7714, Photonic Crystal Fibers IV; 77140G (2010) https://doi.org/10.1117/12.855089
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

We have systematically measured the differential stress-optic coefficient, ΔC, and Young's modulus, E, in a number of PMMA fibers drawn with different stress, ranging from 2 up to 27 MPa. Effect of temperature annealing on those parameters was also investigated. ΔC was determined in transverse illumination by measuring the dependence of birefringence on additional axial stress applied to the fiber. Our results show that ΔC in PMMA fibers has a negative sign and ranges from -4.5 to -1.5×10^-12 Pa^-1 depending on the drawing stress. Increase of the drawing stress results in greater initial fiber birefringence and lower ΔC. The dependence of ΔC and initial birefringence upon drawing stress is nonlinear and gradually saturates for higher drawing stress. Moreover, we find that ΔC is linearly proportional to initial fiber birefringence and that annealing the fiber has no impact on the slope of this dependence. On the other hand, no clear dependence was observed between the fiber drawing stress and the Young's modulus of the fibers as measured using microscopic digital image correlation with the fibers tensioned using an Instron tension tester.

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Marcin K. Szczurowski, Tadeusz Martynkien, Gabriela Statkiewicz-Barabach, Lutful Khan, David J. Webb, Chenchun Ye, Janice Dulieu-Barton, and Waclaw Urbanczyk "Measurements of stress-optic coefficient and Young's modulus in PMMA fibers drawn under different conditions", Proc. SPIE 7714, Photonic Crystal Fibers IV, 77140G (14 May 2010); https://doi.org/10.1117/12.855089

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