rus
Expert Opinion
A.Ignatov
Laser Technology Military Application is gaining momentum. Part I. Defense Budget and Export, Laser Projects Financing Laser Technology military application starts to determine current and advanced weapons technical level. New laser systems with high quality radiation and service characteristics are actively occupying civil and military products market. But laser techniques application spheres are the most nontransparent for market analytics.
Laser Technology Military Application is gaining momentum. Part I. Defense Budget and Export, Laser Projects Financing Laser Technology military application starts to determine current and advanced weapons technical level. New laser systems with high quality radiation and service characteristics are actively occupying civil and military products market. But laser techniques application spheres are the most nontransparent for market analytics.
Competent Opinion
Z.Dadabaeva
Some problems of Fiber-Optic Communications in Central Asia Countries by the Example of the Republic of Tajikistan. Problems and the Potential for Development Problems and the potential of competitive telecommunications environment are analyzed; key 1991—2013 public communication figures characterizing communications services market are present. Brief summary of communications services and their further development forecast are given; the list of the leading communications market players of Tajikistan is reported.
Some problems of Fiber-Optic Communications in Central Asia Countries by the Example of the Republic of Tajikistan. Problems and the Potential for Development Problems and the potential of competitive telecommunications environment are analyzed; key 1991—2013 public communication figures characterizing communications services market are present. Brief summary of communications services and their further development forecast are given; the list of the leading communications market players of Tajikistan is reported.
Tags: communication agency communication services fiber-optic communication links information and communication technologies telecommunication wireless communication волоконно-оптические линии связи информационно-коммуникационные технологии мобильная связь служба связи телекоммуникация услуги связи
Technologies and Technology Equipment
K.Boll
Specialty Fiber Production Special optical fiber is the basis of many unique devices: from supercontinuum generators to optical and photoacoustic sensors for controlling climatological conditions in mines and pipelines safety and consistency. Modernization of Fiber Draw Tower units provides high reproducibility in the process of manufacturing of photonic crystal fiber, and also minimal runout in production of high quality SPUN optical fiber and increases the safety of the operator.
Specialty Fiber Production Special optical fiber is the basis of many unique devices: from supercontinuum generators to optical and photoacoustic sensors for controlling climatological conditions in mines and pipelines safety and consistency. Modernization of Fiber Draw Tower units provides high reproducibility in the process of manufacturing of photonic crystal fiber, and also minimal runout in production of high quality SPUN optical fiber and increases the safety of the operator.
Tags: fiber drawing line microstructural fiber production perform spinning special optical fiber вращение заготовки лиия вытяжки волокна производство микроструктурированного волокна специальное оптическое волокно
J.Pelkonen
Fabrication of High-Quality Preforms for Optical-Fiber Stretching The modified chemical vapor deposition (MCVD/FCVD) process, first described by AT&T Bell Laboratories in US and Southampton University in UK, has become one of the three major manufacturing processes for the fabrication of high-quality fiber performs for optical-fiber stretching. The article describes the technological equipment designed for performs production.
Fabrication of High-Quality Preforms for Optical-Fiber Stretching The modified chemical vapor deposition (MCVD/FCVD) process, first described by AT&T Bell Laboratories in US and Southampton University in UK, has become one of the three major manufacturing processes for the fabrication of high-quality fiber performs for optical-fiber stretching. The article describes the technological equipment designed for performs production.
Tags: high-quality performs fabrication mcvd/fcvd-method mcvd/fcvd-метод optical-fiber stretching system производство высококачественных заготовок система вытяжки оптического волокна
B.Lenardič
Optacore’s New Fiber-Optic Solutions Multimode optical fiber XBend that has an unique construction providing a loose microbend tolerance without reduced transmission capacity. These special aspects allow to use XBend optical fiber in systems with limited space and in aviation electronics, aerospace and other data transmission systems under uncomfortable conditions
Optacore’s New Fiber-Optic Solutions Multimode optical fiber XBend that has an unique construction providing a loose microbend tolerance without reduced transmission capacity. These special aspects allow to use XBend optical fiber in systems with limited space and in aviation electronics, aerospace and other data transmission systems under uncomfortable conditions
N.Yashenkov, I.Muzanov, M.Stepanova
Gas Supply Systems for Laser Cutting Machines In practice the quality of a bridge and cutting speed depends on the quality and purity of auxiliary technological gases: nitrogen and oxygen. The article emphasizes the importance of pure auxiliary gases application for laser cutting.
Gas Supply Systems for Laser Cutting Machines In practice the quality of a bridge and cutting speed depends on the quality and purity of auxiliary technological gases: nitrogen and oxygen. The article emphasizes the importance of pure auxiliary gases application for laser cutting.
T.Bautze, M.Kogel-Hollacher
Keyhole Depth is Just a Distance that Permits the IDM Sensor to Improve Laser Welding Process Precitec’s depth of penetration sensor directly within welding process permits to increase the weld quality. Laser welding, special aspects of channel penetration formation, weld and the keyhole depth are considered.
Keyhole Depth is Just a Distance that Permits the IDM Sensor to Improve Laser Welding Process Precitec’s depth of penetration sensor directly within welding process permits to increase the weld quality. Laser welding, special aspects of channel penetration formation, weld and the keyhole depth are considered.
Additive Technologies
G.Turichin, O.Klimova, E.Zemlyakov, K.Babkin, V.Somonov, F.Shamray, A.Travianov, P. Petrovskiy
Technological Basis of High-Speed Direct Laser Growth of products by Heterophase Powder Metallurgy Method Exchange of the conventional methods of casting by machining using laser growth technology when creating metal products generates new questions. How to keep the required quality of the grown product when increasing the process efficiency? The results of theoretical and experimental studies of the process of direct laser growth of metal products from powder materials are given in the article.
Technological Basis of High-Speed Direct Laser Growth of products by Heterophase Powder Metallurgy Method Exchange of the conventional methods of casting by machining using laser growth technology when creating metal products generates new questions. How to keep the required quality of the grown product when increasing the process efficiency? The results of theoretical and experimental studies of the process of direct laser growth of metal products from powder materials are given in the article.
Lasers & Laser Systems
E.Obraztsova
Graphene Photonics For many years the black electrically-conductive graphite was considered as the material which is useless for photonics. Over the recent years the opinion about this material has been drastically changed. It was found that when decreasing size and transiting to two-dimensional graphite (graphene) or one-dimensional graphite (single-wall carbon nanotubes and graphene nanoribbons) new unique properties appear.
Graphene Photonics For many years the black electrically-conductive graphite was considered as the material which is useless for photonics. Over the recent years the opinion about this material has been drastically changed. It was found that when decreasing size and transiting to two-dimensional graphite (graphene) or one-dimensional graphite (single-wall carbon nanotubes and graphene nanoribbons) new unique properties appear.
A.Boreysho, I.Evdokimov, I.Kiselev, M.Konyaev, V.Skorniakov, M.V.Zagidullin, N.A.Khvatov
Chemical Oxygen Iodine Laser Technologies Laboratory Complex Demonstrator The laboratory complex–demonstrator of Chemical oxygen-iodine laser technologies, developed at the National Chung-Shan Institute of Science and Technology (Taiwan) request has been successfully put into operation at the customer’s test-site. In just under a year one of the most technically sophisticated laser systems was designed, built and all the required technical parameters confirmed. For the first time the authors demonstrated the full cycle of operation of this laser type from preparation of the active medium to powerful radiation input in the optical fiber and transmission over long distances with high efficiency and utilization of a laser active medium using cryosorption pump with different sorbents.
Chemical Oxygen Iodine Laser Technologies Laboratory Complex Demonstrator The laboratory complex–demonstrator of Chemical oxygen-iodine laser technologies, developed at the National Chung-Shan Institute of Science and Technology (Taiwan) request has been successfully put into operation at the customer’s test-site. In just under a year one of the most technically sophisticated laser systems was designed, built and all the required technical parameters confirmed. For the first time the authors demonstrated the full cycle of operation of this laser type from preparation of the active medium to powerful radiation input in the optical fiber and transmission over long distances with high efficiency and utilization of a laser active medium using cryosorption pump with different sorbents.
Tags: chemical oxygen-iodine lasers extremely high power laser сверхмощные лазеры химические кислород-йодные лазеры
Biophotonics
N.Olofsson, I.Lazaridis, K.Meletis, M.Carlén, Ulf Tingström, Håkan Karlsson
Lasers Enhancing Optogenetic Investigations Light can have control light sensitive neurons with a very high time and volumetric accuracy corresponding to normal brain information processing. The choice of a laser source for optogenetics is a fairly delicate question. What laser parameters should have special attention is discussed.
Lasers Enhancing Optogenetic Investigations Light can have control light sensitive neurons with a very high time and volumetric accuracy corresponding to normal brain information processing. The choice of a laser source for optogenetics is a fairly delicate question. What laser parameters should have special attention is discussed.
Tags: opsins optogenetics опсины оптогенетика
Roundtable Discussion
Complex Becomes Available
One of the days of the exhibition Laser Word of Photonics – 2015 its sponsors presented the public a show Additive manufacturing for production miracle and not only. The show displayed the new exposition pattern associated with explosive laser technology implementation and additive manufacturing introduction into production of lightweight structures, prosthetic repair, complicated mechanical blocks. We had talks with some exhibition participants and visitors. Their reports about new products, observed material processing technology trends, new companies, business development opinions we are publishing in the round table material.