Optical soliton processing techniques are expected to play a major role in future ultrafast optical transmision lines, optical computing, and the synthesis of new powerful soliton lasers. We propose the use of a dispersion oscillation fiber as a new versalite tool to control soliton eigenvalues. Using a fiber with sine-wave variation of the core diameter along the longitudinal direction, we can change both the real and imaginary parts of soliton eigenvalues. Changing the real part of the eigenvalues results in a splitting of an optical breather into two distinct pulses propagating with the different group velocities. Changing the imaginary parts of the eigenvalues allows for the realization of a reverse process of merging two solitons into a high-intensity pulse. The generation of high-intensity pulses occurs through inelastic soliton collisions. The splitting of the optical breather and the merging of solitons can be obtained even under the strong effect of stimulated Raman scattering. We believe the tools and techniques based on the use of a dispersion oscillating fiber will grant unprecedented control over soliton eigenstates.
We report the experimental observation of the fission of picosecond solitons in a fiber with sine-wave variation of the core diameter along the longitudinal direction of propagation. The experimental pulse dynamics is reproduced by numerical simulations. The fission of high-intensity solitons caused by both the variation of the fiber dispersion and stimulated Raman scattering is demonstrated. The number of output pulses and their frequencies can be managed by periodical modulation of the fiber dispersion even under the strong effect of the Raman scattering.
Currently, in the Russian Federation, much attention is paid to the introduction of information technologies in all aspects of human life and society as a whole, and also affects the areas of banking, education, healthcare, industrial production, agriculture. The forest complex is a sphere of industrial production, in order to increase the efficiency of its functioning, information technologies are increasingly being used, which are based on modern enterprise management standards (ERP) and allow accounting for the costs of organizing the production process of the enterprise, as well as organizing the transfer of the necessary reporting data to public authorities. To improve the efficiency of the enterprise, it is necessary to evaluate the applicability of software in forestry and logging processes, as well as the possibility of modeling these processes. The degree of similarity and differences of software products in terms of applicability was assessed on the basis of statistical analysis - hierarchical classification in the IBM SPSS Statistics v25 application software package. (The degree of similarity and differences of software products by the degree of applicability was assessed on the basis of statistical analysis – hierarchical classification in the IBM SPSS Statistics v25 application software package). The conducted studies have shown that the software used in the Russian Federation is designed to automate operational, managerial, accounting and tax accounting by enterprises of the forestry and industrial complex, while the process of forestry and logging works is carried out only externally, without affecting the internal features of the process
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