Abstract
This paper proposes the interferometric method for arrays inscription of type I Bragg gratings on the unified segment of the standard telecommunication single-mode optical fiber, using preliminary inscription of the gratings with low diffraction efficiency. The accuracy of setting the Bragg resonance wavelength of each individual diffraction structure is at least 50 pm with the reflection coefficient close to 100%. Also, the results of chirped fiber Bragg gratings arrays inscription in a fiber with a high content of germanium dioxide (GeO2) in the core are obtained. An analysis of the spectral characteristics of the inscribed periodic structures of modulation of the refractive index is made.
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