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Conditions for Measuring Nonlinear Refractive Index n2 by SPM Based cw Dual-Frequency Method
IEICE TRANSACTIONS on Communications
Publication Date: 2001/12/01
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Optical Fiber
nonlinear refractive index, self-phase modulation, single-mode fiber, chromatic dispersion,
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In this letter, we describe the conditions for measuring the nonlinear refractive index n2 when using the self-phase modulation-based cw dual-frequency method. We clarify the appropriate measurement conditions for dispersion-shifted and conventional single-mode fibers both numerically and experimentally. We also show experimentally that the evaluated n2 values for conventional single-mode fiber depend on the signal wavelength separation.