Abstract
Polarimeters for measuring the Stokes parameters have evolved significantly over
the years from a variety of bulk-optic configurations to a number of elegant in-fiber
designs. In this paper, we exploit recent advances in tilted fiber Bragg grating (FBG)
technology to propose an improved in-line polarimeter that samples more than four
detected beams with only two tilted FBGs. Based on theoretical analysis and simulation
utilizing an extended formulation of the Volume Current Method (VCM), we demonstrate
that this design reduces average Stokes vector errors by 20% for every state of
polarization (SOP), facilitating monitoring at lower signal to noise ratios (SNRs).
© 2010 IEEE
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