Supersonic Gas and Chemical Lasers: Technology Development DOI: 10.22184/1993-7296.FRos.2020.14.8.648.661
Supersonic gas and chemical lasers are sources of powerful continuous radiation with high optical quality. These qualities allow the use of such lasers as part of autonomous mobile complexes. A brief overview of work on the creation and improvement of lasers, the formation of high-quality radiation, the development of advanced storage and preparation systems for the working fluid, and pressure recovery systems is presented.
Using Zeeman Ring Laser to Measure Magnetic Field DOI: 10.22184/1993-7296.FRos.2020.14.8.664.672
This work is devoted to the construction of a precision magnetometer based on a Zeeman ring laser (ZRL). It is shown that the ZRL allows high-precision measurements of magnetic fields up to 10 Oe in a wide range of operating temperatures. Such a ZRL has a narrow directivity pattern, which is especially important when measuring the vertical component of the Earth’s magnetic field or the direction to the magnetic poles. The main reasons affecting the sensitivity of the ZRL to the magnetic field are revealed. Experimental results of the use of ZRL for measuring magnetic fields of various strengths are presented.
Dependence of Main Characteristics of Microcryogenic Stirling System for Cryostating of Photodetector Modules on The Mean Pressure Cycle DOI: 10.22184/1993-7296.FRos.2020.14.8.674.679
The defining component of the cooled photodetector IR module, which qualitatively affects its main characteristics, is the microcryogenic system. The reader is offered to study the dependences of the technical characteristics of the Stirling monoblock microcryogenic system (MCS) on the average pressure of the cryoagent in the system for the purpose of optimization.
Photonic Computer. Element Base DOI: 10.22184/1993-7296.FRos.2020.14.8.696.707
The implementation of interference logical elements (LE) is proposed, based on the functioning of which the difference in the intensity values of coherent light waves arising as a result of their interaction with each other and with the waveguides of the logical elements.
The elements form a functionally complete basis.
The requirements for the identity of the intensity values corresponding to the logical constants “0” and “1”, generated by different elements at given fixed time intervals, are fulfilled.
Means for scaling the intensity values of logical constants are proposed. The estimates of the parameters of the elements – speed, power consumption, physical dimensions – are obtained, showing their advantages over electronic counterparts.
Fields of application of interference LEs are digital devices of control systems and computer technology.
Traffic Intercept in Optical Network: Method of Optical Tunneling Numerical simulation analysis of information interception based on optical tunneling information signal from fiber optic communication systems in a channel leak shows a high level threats of information security of critical information infrastructure. Interception can be implemented covertly in the field with the probability of an error bit appearing, no more than in the communication line, even while preserving the structure of the optical fiber and with minimal damage to the cable’s protective shells.
Statistical Lens Development When Taking into Account Wave Correlation of Randomly Uneven Surface DOI: 10.22184/1993-7296.FRos.2020.14.8.708.716
The article is devoted to modelling a randomly uneven surface, taking into account the correlation of slopes. The facts of observation of the underwater relief from space are presented, and an explanation is proposed based on the assumption that a statistical lens can form on the water surface. A spectral representation method is described, which allows one to construct random surfaces with a given correlation function. This method is implemented in the MATLAB software environment. To check the program, the relief of the CD-ROM was reproduced, obtained using an atomic force microscope. As a next step, a disturbed water surface is simulated, which acts on the transmitted rays like a real optical lens. The results obtained confirm the possibility of the formation of giant lenses on the surface of the seas and oceans, thus helping to distinguish the bottom topography from space.