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Methods for changing CuBr vapor laser operating parameters by varying discharge circuit parameters of a power supply were observed. Various options of matching the power supply and the active element were tested to obtain a steady amplifying state with an atypical duration of pulse radiation. Use of the matching autotransformer made it possible to increase the power of generation two-fold and to stabilize...
Actual methods of the long lasing pulse obtaining in CuBr active medium was observed. A compact pump source, which can be used in mode with low energy input in the discherge was developed. The source is stable working in low frequencies (2–3 kHz) and allows to achieve a pulse duration up to 100 ns. Moreover, this source allows to operate with the pulse repetition frequency of up to 50 kHz. Developed...
The paper presents the results of object visualization with the laser monitor system at different distances between the object and the brightness amplifer. In spite of the fact that CuBr-laser active medium has a high gain and works in a saturation mode, an increase in distance leads to a signifcant reduction of the image contrast. At a distance of more than 4 m the image becomes indistinguishable...
This paper presents the experimental results obtained using two image quality assessment methods. The possibility of using these methods in the laser monitor autofocus system is studied. Based on mathematical algorithms the software for image brightness assessment has been developed in MatLab. The image sharpness for brightness amplifiers operating at different wavelengths is compared.
Efficiency of energy input into the discharge in lasers on self-terminating transitions in metal vapors, in particular copper bromide lasers, determines the energy and efficiency of lasing. This paper discusses the influence of reactive components of the discharge circuit on output power of copper bromide laser. It is shown that decrease in lasing power caused by increase in the discharge circuit...
In this paper the design of high speed brightness amplifiers on transitions of copper and manganese atoms is discussed. A possibility of obtaining images in active optical systems with a brightness amplifier operating at 100 kHz frequency is demonstrated. The results of comparing the images obtained using brightness amplifiers on copper bromide and manganese bromide vapors are given.
This paper presents an algorithm for processing the images obtained by a laser monitor, which makes possible to get the data on the observed object or its separate parts. The algorithm is presented in two versions: with or without overwriting of the ROI. The macro is designed in MATLAB and ImageJ environments implementing this algorithm, and testing both of the algorithms on different objects is carried...
The paper discusses the use of a CuBr-laser active medium for visualization of high speed-processes obscured by background light. The methods of laser illumination and laser monitor are suggested.
The paper presents the results of the study of solid-state power supply units for pumping CuBr-lasers of various geometry. The possibility of developing solid-state high-frequency (>100 kHz) power supply units is demonstrated, and the results of simulation and breadboarding of solid-state high-voltage power supply units for pumping CuBr-lasers are discussed.
The paper presents state of the art for laser projection microscopes and their application for monitoring objects and processes hidden from view of an observer by a layer of bright luminous plasma. We show the possibility of registration of an image, which is obtained using laser projection microscope and is formed by a single pulse of the optical amplifier. Laser monitor based on CuBr-laser with...
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