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Technologies and Technology Equipment
V.Ugov
High Cost-Effective Use of Resources Technology: Laser surface treatment Laser beam metallic parts surface hardening technology drastically increases their hardness and durability. This article considers laser complexes that provide in comparison with other methods better thermo cycle for structure-phase transition with surface layer flash heat and rapid cooling. While the beam doesn’t heat the parts deeper layers and doesn’t create stresses, strains and changes in geometric dimensions.
High Cost-Effective Use of Resources Technology: Laser surface treatment Laser beam metallic parts surface hardening technology drastically increases their hardness and durability. This article considers laser complexes that provide in comparison with other methods better thermo cycle for structure-phase transition with surface layer flash heat and rapid cooling. While the beam doesn’t heat the parts deeper layers and doesn’t create stresses, strains and changes in geometric dimensions.
V.Kochergin, A.Lerner, D.Lyakhov, I.Kozlov
Laser and Optical Technologies for Producing Nuclear Power Reactors’ Components Heat generating assembly (HGA) of nuclear power reactors that are used in electric power sector is destined to work in the nuclear power plant active sector. The assembly compromises laser cutting work pieces from the zirconium alloy sheet. Due to heating up metal intensively interacts with atmospheric oxygen and with this it’s anticorrosion properties decrease. In this article we discuss problems of measurement and control HGA by means of optical-electronic systems when connecting such components as spacer grids and slap lattices.
Laser and Optical Technologies for Producing Nuclear Power Reactors’ Components Heat generating assembly (HGA) of nuclear power reactors that are used in electric power sector is destined to work in the nuclear power plant active sector. The assembly compromises laser cutting work pieces from the zirconium alloy sheet. Due to heating up metal intensively interacts with atmospheric oxygen and with this it’s anticorrosion properties decrease. In this article we discuss problems of measurement and control HGA by means of optical-electronic systems when connecting such components as spacer grids and slap lattices.
Tags: laser metal cutting nuclear power reactors welded connections control контроль сварных соединений лазерная резка металлов ядерные реакторы
Conferences, exhibition & seminars
J.Yakushenkov
International Forums "Optical Devices and Technologies – Optics-Expo" “Optics-Expo” forums call together leading native and foreign optic and optical high technology specialists. Prior to the autumn “Optics-Expo” forum opening chairman of the forum program committee RSFSR honoured master of sciences and engineering, professor, doctor of engineering sciences J.Yakushenkov tells about the forthcoming scientific-technical event organizational structure.
International Forums "Optical Devices and Technologies – Optics-Expo" “Optics-Expo” forums call together leading native and foreign optic and optical high technology specialists. Prior to the autumn “Optics-Expo” forum opening chairman of the forum program committee RSFSR honoured master of sciences and engineering, professor, doctor of engineering sciences J.Yakushenkov tells about the forthcoming scientific-technical event organizational structure.
Lasers & Laser Systems
V.Akparov, V.Duraev, S.Medvedev
Single Frequency FBG Laser for DWDM at Wave Length 1550nm Single frequency FBG laser with a hybrid resonator on the basis of a fiber Bragg grating ia intended for application in DWDM telecommunication links. Its emission bandwidth and stability, as well as reliability are greatly superior to those parameters of DFB lasers. Durability of the developed laser is 500000 hours.
Single Frequency FBG Laser for DWDM at Wave Length 1550nm Single frequency FBG laser with a hybrid resonator on the basis of a fiber Bragg grating ia intended for application in DWDM telecommunication links. Its emission bandwidth and stability, as well as reliability are greatly superior to those parameters of DFB lasers. Durability of the developed laser is 500000 hours.
Tags: dwdm fiber optic links laser emission characteristics measurement semiconductor lasers волоконно-оптические линии связи измерение параметров излучения лазеров полупроводниковые лазеры
R.Abdrakhmanov, U.Efimov, A.Naumov, V.Semachko
Ultra Violet Solid-State Laser for High Efficiency Psoriasis and White Leprosy Therapy In the line of effective phototherapeutic psoriasis and white leprosy treatment methods UV lasers have a worthy position. A solid-state laser with wavelength continuous tuning in the 281–335nm has been created. Experiments showed its therapy effect without any accessory thermal phenomena. The device undergoes clinical tests.
Ultra Violet Solid-State Laser for High Efficiency Psoriasis and White Leprosy Therapy In the line of effective phototherapeutic psoriasis and white leprosy treatment methods UV lasers have a worthy position. A solid-state laser with wavelength continuous tuning in the 281–335nm has been created. Experiments showed its therapy effect without any accessory thermal phenomena. The device undergoes clinical tests.
Tags: laser emission parameters measurement phototherapy semiconductor lasers uv lasers измерения параметров излучения лазеров лазеры уф-диапазона твердотельные лазеры фототерапия
P.Vorobyev, A.Kondrakhin, G.Melnichuk, A.Ulitenko, E.Chulyaeva
Frequency-stabilized He-Ne Lasers Thermal Conditions Investigation The investigations main goal is to decrease readiness time of He-Ne lasers with temperature controlled resonator length. Thermal conditions of a laser which frequency is stabilized by equality of normally polarized laser components intensities, determines the laser emission parameters stability. These lasers find application in industrial laser interferometers for geo-ecology and machine industry. Predictive scheme and experimental results correspondence has been shown.
Frequency-stabilized He-Ne Lasers Thermal Conditions Investigation The investigations main goal is to decrease readiness time of He-Ne lasers with temperature controlled resonator length. Thermal conditions of a laser which frequency is stabilized by equality of normally polarized laser components intensities, determines the laser emission parameters stability. These lasers find application in industrial laser interferometers for geo-ecology and machine industry. Predictive scheme and experimental results correspondence has been shown.
Tags: he-ne lasers he-ne лазеры laser emission frequency and power stabilization стабилизация частоты и мощности излучения лазеров
A.Gerasimov, M.Ruzin
Counter-Terrorizm Laser-Optic Devices and Systems Counter-terrorism systems laser devices permit to quickly and efficiently locate and fix optical-electronic facilities (OEF) that are used even those that are carefully concealed. At the same time they accurately and if necessary by balance effect terrorists not creating danger for neighbors. This review article will attract OEFs consumers and developers interest.
Counter-Terrorizm Laser-Optic Devices and Systems Counter-terrorism systems laser devices permit to quickly and efficiently locate and fix optical-electronic facilities (OEF) that are used even those that are carefully concealed. At the same time they accurately and if necessary by balance effect terrorists not creating danger for neighbors. This review article will attract OEFs consumers and developers interest.
Tags: counter-terrorism activity optical-electronic devices optical information processing and transmission tracking systems антитеррористическая деятельность оптико-электронные приборы системы слежения формирование и передача оптической информации
Biophotonics
V.Minaev
Myocardial Laser Revascularization. Is a Crack on the Heart Needed? Despite all the advantages of myocardial laser revascularization it is necessary to understand that high power laser emission rupture means a “crack” on the heart that can lead to an induced arrhythmia. This imposes requirements of obligatory pulse radiation synchronization with cardiac rhythms. How necessary of all other methods is pulse cardiac treatment? Several possible alternate hardware designs for implementation of this method and its future paths of development are discussed in this article.
Myocardial Laser Revascularization. Is a Crack on the Heart Needed? Despite all the advantages of myocardial laser revascularization it is necessary to understand that high power laser emission rupture means a “crack” on the heart that can lead to an induced arrhythmia. This imposes requirements of obligatory pulse radiation synchronization with cardiac rhythms. How necessary of all other methods is pulse cardiac treatment? Several possible alternate hardware designs for implementation of this method and its future paths of development are discussed in this article.
Tags: cardiosurgery medicine laser methods myocardial rupture кардиохирургия лазерные методы в медицине перфорация миокарда
Optical measurements
A.Frunze
Pyrometers Systematic Errors Impact on the Device Сhoice A large number of systematic errors accompany pyrometric measurements in metallurgy. This article reasonably confirms that product to improve quality it isn’t necessary to buy a pyrometer that can simultaneously measure high and low temperatures.
Pyrometers Systematic Errors Impact on the Device Сhoice A large number of systematic errors accompany pyrometric measurements in metallurgy. This article reasonably confirms that product to improve quality it isn’t necessary to buy a pyrometer that can simultaneously measure high and low temperatures.