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12 October 2005 Evolution of polarization in spun fiber Bragg gratings
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In this paper, the polarization characteristics of fiber Bragg gratings written into spun fibers with certain intrinsic birefringence and short spinning periods are studied experimentally. In terms of the Stokes parameters, the evolutions of states of polarization (SOP) in spun fiber Bragg gratings are investigated. The polarization-mode dispersion (PMD) and polarization dependent loss (PDL) are examined in both the transmission and reflection manners. The spun fiber Bragg gratings exhibit distinctive properties from those in the conventional single-mode fibers. In particular, they always exhibit multiple side peaks near the Bragg peaks with certain wavelength intervals in their reflection spectra. It is further shown that these reflection peaks have different polarization dependences on input SOP. The observed polarization dependences in the experiments are then confirmed in the simulation, and potential applications are discussed.
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Yong Wang, Chang-Qing Xu, and Viatcheslav Izraelian "Evolution of polarization in spun fiber Bragg gratings", Proc. SPIE 5970, Photonic Applications in Devices and Communication Systems, 597005 (12 October 2005);

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