Stress and modal birefringence of single-mode specialty optical fibers with three-stress regions

• DOI: 10.1007/s11741-011-0709-1
• Publication Date: 2011-04-15T11:48:15Z
• Authors: Yi-chao Meng; Ming-hua Wu
• Keywords: 0103 physical sciences; 01 natural sciences

Stress-induced birefringence and modal birefringence of single-mode specialty optical fibers with three stress regions are numerically analyzed by the vector finite element method. Stress distribution and stress-induced birefringence distribution of three kinds of optical fibers with different cross structures are presented and compared, and the influence on the stress-induced birefringence by temperature change are analyzed as well. The results show that the fibers with three-stress regions have a lower linear birefringence, which is very important for the fabrication of the circular polarization-maintaining fiber with high performance drawn from the same fiber preform by using the spinning method.