Abstract
The availability of an accurate knowledge of the non-linear refractive index n2 is a really important issue in the study of optically amplified transmission systems. Recently the Kerr non linearity have been measured in optical Fiber by the observation of the pulse distortions due to Self-Phase Modulation (SPM) [1] and by a Cross-Phase Modulation (XPM) technique [2]. Both methods however suffer of a sensible optical beam polarization dependence.
© 1996 IEEE
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