Simple method for the birefringence evaluation of helicoidal optical fiber structures

Diana Tentori; Cesar Ayala-Diaz; Fernando Trevino-Martinez; Francisco J. Mendieta-Jimenez; Horacio Soto Ortiz

doi:10.1117/12.403581

11 October 2000 Simple method for the birefringence evaluation of helicoidal optical fiber structures

Diana Tentori, Cesar Ayala-Diaz, Fernando Trevino-Martinez, Francisco J. Mendieta-Jimenez, Horacio Soto Ortiz

Proceedings Volume 4103, Optical Diagnostic Methods for Inorganic Materials II; (2000) https://doi.org/10.1117/12.403581
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

The polarization optical properties of single mode fibers are important in those applications based on the use of coherent polarized light, such as fiber optic interferometric sensors and coherent communication systems. Various birefringence mechanisms and combinations of them have been developed to control the polarization evolution of light along the fiber. Since 1977 when A.Papp and H.Harms1 suggested the application of helical core fibers for this purpose, their polarization properties have been studied by several authors.24 In I 984 J.N. Ross2 showed that helically wound monomode fibers behave as the combination of a distributed linear retarder and a distributed circular retarder. Since linear and circular retardation can be easily followed on the Poincaré sphere, this representation of polarized light results adequate for helical fibers. In this work the non-destructive evaluation of the equivalent optical activity and the equivalent linear retardation of a fiber helix are performed using the trajectory described on the Poincaré sphere when the orientation of the linearly polarized light at the input rotates 360°. The results we obtain are compared with the values determined for the linear and circular retardation using Ross model and an input circular or linear polarization. We present preliminary results obtained for the birefringence characterization of two helically wound fibers built with .-l4m and —27m of a telecommunications fiber ( I 550nm).

Citation Download Citation

Diana Tentori, Cesar Ayala-Diaz, Fernando Trevino-Martinez, Francisco J. Mendieta-Jimenez, and Horacio Soto Ortiz "Simple method for the birefringence evaluation of helicoidal optical fiber structures", Proc. SPIE 4103, Optical Diagnostic Methods for Inorganic Materials II, (11 October 2000); https://doi.org/10.1117/12.403581

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