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Analytical method for calculation of stresses and material birefringence in polarization-maintaining optical fiber

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2 Author(s)
Chu, P.L. ; University of New South Wales, Kensington, Australia ; Sammut, Rowland A.

An analytical method is presented for the calculation of 1 thermal stress and the material birefringence in polarization-maintaining 1 optical fiber. The method is based on the thermoelastic displacement c potential in which the principle of superposition applies. The method is applicable to any fiber structure. Its application to fibers with isolated stress-producing regions and a variety of core shapes is demonstrated. The optimum fiber parameters required to achieve maximum material birefringence for fibers with circular or bow-tie shaped stress regions are given. It is also shown that the thermal stresses tend to make the bow-tie fiber more crack-resistant than the fiber with circular stress lobes.

Published in:

Lightwave Technology, Journal of  (Volume:2 ,  Issue: 5 )