| 摘要 |
A method (300) and apparatus (100) for providing controllable second-order polarization mode dispersion for fiber optic transmission systems are provided. A section of fixed high birefringent optical fiber (106), a polarization controller (104), and a variable differential group delay module (102) are provided. The polarization controller (104) is connected to the optical fiber section (106), and the variable differential group delay module (102) is connected to the polarization controller (104). The variable differential group delay module (102) is controlled to vary the second-order polarization mode dispersion values at an output (116)of the high birefringent optical fiber section (106).
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