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Investigation of polarization dispersion in long lengths of single-mode fiber using multilongitudinal mode lasers

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3 Author(s)
N. Bergano ; AT&T Bell Laboratories, Holmdel, NJ, USA ; C. Poole ; R. Wagner

We have used multilongitudinal mode lasers to investigate the polarization properties of long lengths of single-mode fiber cable. We find that the individual longitudinal modes are >99-percent polarized after propagation through 54.6 km of cabled fiber; however, the different longitudinal modes have different states of polarization at the output. This difference is caused by polarization dispersion, and we estimate a propagation delay difference for the two principal states of polarization to be 0.42 ps in the 54.6 km of cabled fiber.

Published in:

Journal of Lightwave Technology  (Volume:5 ,  Issue: 11 )