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MEASURING THE BIREFRINGENCE VALUE OF A PANDA FIBER USING A SAGNAC INTERFEROMETER

Annotation

A technique for measuring the birefringence of optical fibers using a Sagnac interferometer and a radiation source with a tunable wavelength is presented. Physical principles that form the basis the presented methodology are considered. To eliminate the influence of the nonlinearity of the radiation source wavelength tuning rate on the measurement accuracy, an auxiliary interferometer with known parameters is used. The obtained values of measured fiber birefringence coincide with the passport values, which confirms the proposed measurement technique effectiveness.

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