Investigations on the wavelength dependence of optically induced long-period Bragg gratings
We numerically analyze the conversion of transverse modes with optically induced long-period Bragg gratings. These gratings are generated by a recently developed technique which uses a writing beam guided within the fiber to introduce a transient grating via the optical Kerr effect. We demonstrate several settings for conversion between different transverse modes, including conversion over a broad spectral range of up to 60 nm. The tunability of the grating parameters could promote novel applications.
KeywordsGraphic Processing Unit Probe Beam Refractive Index Change Core Radius Grating Period
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