Here we report on the first CENAM realization of the phase-shift method for chromatic dispersion measurements in
mono-mode phase-shifted optical fibers used for the telecommunications C-band (1 550 nm). This chromatic dispersion
measurement and calibration capability development at CENAM will provide the Mexican telecommunications industry
with a formally established SI units traceability source, thus promoting this rapidly growing and high impact economic
sector competitiveness in Mexico. We also identified a 40 MHz modulation frequency, a 2.5 nm wavelength step and the
1 535 nm to 1 570 nm wavelength scanning range, as the optimum experimental parameters that have to be set in order
to obtain experimental data which numerical Sellmeier polynomials fittings produce representative determinations for
the group delay and the chromatic dispersion. We also obtained 1 549.388 nm ± 0.098 nm, (k=1), for the zero dispersion
wavelength, and 0.719 7 ps-nm-2 ± 0.005 5 ps·nm-2, (k=1), for the zero dispersion slope of the tested optical fiber.
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