On a possible method to measure the radial profile of the photoelastic constant in step-index optical fiber

Sophie Acheroy; Patrick Merken; Thomas Geernaert; Heidi Ottevaere; Hugo Thienpont; Francis Berghmans

doi:10.1117/12.2050343

15 May 2014 On a possible method to measure the radial profile of the photoelastic constant in step-index optical fiber

Sophie Acheroy, Patrick Merken, Thomas Geernaert, Heidi Ottevaere, Hugo Thienpont, Francis Berghmans

Proceedings Volume 9141, Optical Sensing and Detection III; 914115 (2014) https://doi.org/10.1117/12.2050343
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

Abstract

We describe a measurement method to determine the radial distribution of the photoelastic coefficient C in a step-index optical glass fiber. This method is based on the measurement of the retardance profile of a transversally illuminated fiber for increasing tensile load. The radial profile C(r) is obtained from the inverse Abel transform of this retardance profile. We measured three step-index glass fibers with three different core radii. The results suggest that C may be constant across the fiber section and that the mean absolute value of C is slightly larger for glass fibers than for fused silica. Additionally, the shape of the actual refractive index profile can be derived from the retardance measurements.

Citation Download Citation

Sophie Acheroy, Patrick Merken, Thomas Geernaert, Heidi Ottevaere, Hugo Thienpont, and Francis Berghmans "On a possible method to measure the radial profile of the photoelastic constant in step-index optical fiber", Proc. SPIE 9141, Optical Sensing and Detection III, 914115 (15 May 2014); https://doi.org/10.1117/12.2050343

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