Abstract
We have systematically measured the differential stress-optic coefficient, , in a number of poly(methyl methacrylate) (PMMA) fibers drawn with different stress, ranging from 2 up to . was determined in transverse illumination by measuring the dependence of birefringence on additional axial stress applied to the fiber. Our results show that in PMMA fibers has a negative sign and ranges from to , depending on the drawing stress. Increase of the drawing stress results in greater initial fiber birefringence and lower .
© 2010 Optical Society of America
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