25 April 2012 Spectral interferometry-based dispersion characterization of microstructured and specialty optical fibers using a supercontinuum source
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Abstract
Two spectral interferometric techniques employing a supercontinuum source are used for dispersion characterization of birefringent microstructured and specialty optical fibers over a broad spectral range (e.g. 500-1600 nm). First, a technique employing an unbalanced Mach-Zehnder interferometer is used for measuring the chromatic dispersion and zero-dispersion wavelength of one polarization mode supported by a microstructured optical fiber. Second, a technique employing a tandem configuration of a Michelson interferometer and a fiber under test is used for measuring the group modal birefringence dispersion of the fiber and the chromatic-dispersion difference as a function of wavelength. From these measurements, the chromatic dispersion and the zero-dispersion wavelength of the other polarization mode supported by the microstructured optical fiber are retrieved. We revealed from four measurements the dependence of the zero-dispersion wavelength on the geometry of air-silica microstructured optical fiber. We also measured by the second technique the zero-chromatic-dispersion difference wavelength for elliptical-core optical fibers. We revealed from four measurements that the dispersion parameter can be tuned by the fiber geometry.
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P. Hlubina, P. Hlubina, D. Ciprian, D. Ciprian, M. Kadulová, M. Kadulová, T. Martynkien, T. Martynkien, P. Mergo, P. Mergo, W. Urbańczyk, W. Urbańczyk, } "Spectral interferometry-based dispersion characterization of microstructured and specialty optical fibers using a supercontinuum source", Proc. SPIE 8426, Microstructured and Specialty Optical Fibres, 84260N (25 April 2012); doi: 10.1117/12.921457; https://doi.org/10.1117/12.921457
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