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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 8 — Mar. 10, 2008
  • pp: 1109–1116

Polarization mode dispersion measurement based on continuous polarization modulation

Bogdan Szafraniec, Rüdiger Mästle, and Douglas M. Baney  »View Author Affiliations

Applied Optics, Vol. 47, Issue 8, pp. 1109-1116 (2008)

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A novel technique is proposed for measurement of the group delay (GD) and the differential group delay (DGD) of optical material, components, and fiber. This new method is based on continuous polarization modulation of the stimulus optical field as opposed to sequential polarization state switching used in the traditional phase shift method. A new complete derivation of the phase shift method, based on the modified Jones calculus of elementary matrices, is presented. The derivation reveals that the phase shift measurement actually depends on all eight elementary parameters that represent DGD and optical frequency derivatives of polarization-dependent loss (PDL). Thus, the new expression for the phase shift includes the combined effect of PDL and DGD. The proposed method is evaluated by measuring a section of polarization-maintaining fiber and a 50 km length of single-mode fiber over a wavelength range from 1530 to 1610 nm . Measurements of DGD in a long single-mode fiber are shown to be highly insensitive to environmentally induced GD drift.

© 2008 Optical Society of America

OCIS Codes
(060.2300) Fiber optics and optical communications : Fiber measurements
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.4080) Fiber optics and optical communications : Modulation
(260.2030) Physical optics : Dispersion
(260.5430) Physical optics : Polarization

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: November 8, 2007
Revised Manuscript: January 16, 2008
Manuscript Accepted: January 16, 2008
Published: March 7, 2008

Bogdan Szafraniec, Rüdiger Mästle, and Douglas M. Baney, "Polarization mode dispersion measurement based on continuous polarization modulation," Appl. Opt. 47, 1109-1116 (2008)

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