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Tsvetkov A.D.,Scientific Research Institute of Optoelectronic Devices
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2014

This paper proposes a method for designing a catadioptric retroreflector with correction of spherical aberration. The calculation is based on an analysis of the third-order spherical aberration. A concentric meniscus is proposed as a correcting element, the use of which significantly improves the wave front of the output radiation. In this case, a combination of any two glasses with different refractive indices for the given wavelength can be used to correct the aberration. © 2014 Optical Society of America.


Alekseev V.N.,Scientific Research Institute of Optoelectronic Devices | Liber V.I.,Scientific Research Institute of Optoelectronic Devices | Pestov Yu.I.,Scientific Research Institute of Optoelectronic Devices | Volkov A.S.,OOO Integrated Technologies
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2014

The possibility of suppressing the radiation depolarization that appears in the active element of a YAG:Nd3+ laser pumped by linear laser-diode arrays with a pump-pulse-repetition rate of 1 kHz has been experimentally investigated. It is shown that the total suppression of the depolarization of the laser radiation is impeded by the appearance of birefringence in the crystals of the electrooptic shutters and the active medium of the Faraday rotator. This paper discusses the layout of a cavity with beam splitting at the polarization components, which made it possible to obtain an output pulse energy at the second harmonic greater than 10 mJ with intracavity conversion of radiation with a pulse width of 25 ns. © 2014 Optical Society of America.


Bedrin A.G.,Scientific Research Institute of Optoelectronic Devices | Gromovenko V.M.,Scientific Research Institute of Optoelectronic Devices | Mironov I.S.,Scientific Research Institute of Optoelectronic Devices
Journal of Optical Technology (A Translation of Opticheskii Zhurnal) | Year: 2014

For a plasma light source based on a magnetically compressed discharge operating in a regime with a discharge-current pulse width equal to 1 s, induced by an electric power of about 1 MW, the possibilities are investigated of forming the time dependence and energy characteristics of radiation supplied from a network thyristor rectifier with an output voltage of about 500 V and a discharge current of up to 6000 A. It is shown that increasing the fraction of easily ionizable elements (Na, Ca, La) in the composition of the plasma-forming material increases the radiant exitance of the plasma radiator. The optimum induction of the compressing magnetic field is found. © 2014 Optical Society of America.

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