Graduate Thesis Or Dissertation
 

Evolution of polarization along a single mode fiber

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/9g54xn458

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  • This study investigates the polarization and magnetooptic properties of single-mode fibers. These are important for the development of single-mode fiber applications such as interferometric and electromagnetic field sensors and coherent communication systems, which rely on the polarization state of the light. Various linear, circular and induced birefringence effects cause mode coupling and change the state of polarization along the fiber. An additional rotation of polarized light is introduced by the geometry of the fiber. A theoretical treatment is given for these effects, serving as a basis to describe the evolution of polarization in single mode fibers. The recently developed theory of Berry's phase as a topological effect in momentum space causing a rotation of polarized light is verified experimentally and included in the general theory of optical systems. Measurements of fiber specifications such as the elastooptic coefficient and the intrinsic birefringence are performed for two different types of fibers. The results are finally used to investigate the applicability of the geometric rotation in magnetooptic current sensing.
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Déclaration de droits
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  • File scanned at 300 ppi (Monochrome) using ScandAll PRO 1.8.1 on a Fi-6770A in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
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