Method for transmitting optical pulses
 Optical communication line / 2248099Method involves reducing optical radiation divergence of transmitter M times as small, estimating characteristic size of spot of optical radiation transmitter D directly in receiving plane and applying multi-aperture optical receiver aerial composed of N receiving objectives (N≥2), movable depending on current value of D. |
 Data transfer method for optical communication system (alternatives) / 2246177Proposed method involves concurrent transfer of two optical data signals over optical communication line, their reception and comparison, and noise suppression. Optical data signals are shaped across output of nonlinear optical element by supplying at least one optical beam to element input and varying input power or phase, or frequency of one optical beam supplied to input of nonlinear optical element, or by varying electric or acoustic field applied to this element. In this way optical change-over between two unidirectional distributed and coupled waves propagating through nonlinear optical element is ensured. Each of these waves at output of nonlinear optical element corresponds to optical data signal. These data signals are supplied to differential amplifier designed for subtracting electric signals and/or to correlator which separates coinciding part of amplitude of these signals as function of time. As an alternative, optical data signals are shaped across output of tunnel-coupled optical waveguides of which at least one functions as nonlinear optical element. |
 Singlet oxygen generator / 2261506Device has body, solution injector, chlorine injector and throttle valve. Chlorine injector is placed under solution injector. Inside generator body, guide for gas flow is st, forming a channel together with side wall of body. Jets of solution and chlorine flow move in the channel downwardly in same direction to one side of guide. Output of flow of singlet oxygen from solution jets is performed with turn for 180° upwards and by further movement of singlet oxygen flow through throttle valve to other side of guide. Pipe of injector of solution pass through apertures in chlorine injector, while ends of pipes of solution injector exit below openings for output of chlorine jets. Such input of chlorine decreases destruction of solution jets by chlorine jets at starting and working portions of jets and excludes solution getting into chlorine injector. |
 Unstable multipass resonator of supersonic chemical oxygen-water laser / 2258992Proposed resonator has two focused mirrors, even number of intermediate mirrors, and active medium characterized in improved energy take-off. Active medium is disposed between flat intermediate mirrors. Input mirror is concave and output one is convex. Size of intermediate mirrors is a multiple of aperture size. |
 Single-frequency he-ne laser / 2258991Proposed laser has resonator formed by mirrors that accommodates active element and frequency selector in the form of Fabry-Perot etalon whose faces are made at angle |
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Single-frequency he-ne laser / 2258991 Proposed laser has resonator formed by mirrors that accommodates active element and frequency selector in the form of Fabry-Perot etalon whose faces are made at angle |
 Method and aerodynamic window for controlling supersonic jet of aerodynamic window curtain for high-power laser / 2256989Proposed aerodynamic window for high-power laser has shaped flat supersonic nozzle, optical cavity, flat supersonic diffuser, wall pockets, and side wall. Nozzle produces supersonic jet in window aperture. Diffuser has supersonic blow-own nozzles. Pockets are disposed in aperture channel. Proposed method for controlling supersonic jet of aerodynamic window curtain includes generation of curtain jet having desired flow parameters and static pressure drop, as well as maintenance of continuous flow of boundary layers in output channel. Supersonic blow-own wall jet is organized in addition at inlet of output channel throughout width of its upper wall. Supersonic blow-own wall jets are formed through height of output-channel side walls. Intermediate-pressure wall flows are confined within wall pockets. |
 Method for producing oxidizing gas in supersonic hf/df gas laser / 2256268Proposed method used for continuous-wave supersonic gas laser with active medium based on working molecules of hydrogen fluorine (HF) and deuterium fluorine (DF) includes continuous supply of fluorine-containing oxidant, fuel gas, and inert thinner into gas-generator combustion chamber to obtain high-temperature mixture incorporating fluorine atoms which is fed together with cold inert thinner in the amount of minimum 50 volume percent of entire amount of thinner in laser to input parts of oxidizing nozzles and mixed up within these nozzles to form separate jets. Oxidizing gas produced in the process enables raising laser beam power by 2 - 3 times and specific power takeoff by 1. - 2.5 times. |
 Method and device for exciting gas molecules and atoms / 2255398Proposed method intended for exciting molecules and atoms of working gas includes voltage supply to electrodes and organization of working gas flow in discharge gap so that working gas flow is fully passed through cathode layer of volume glow discharge; gas flow organizing means is disposed upstream of cathode so that gas mixture flow is passed through cathode , interelectrode space, anode, and radiation generation working area. Device implementing this method has flow organizing means, power supply, working gas, and discharge chamber incorporating anode and cathode made in the form of grids; at least cathode grid has regular pitch not to exceed thickness of cathode layer of normal gas volume glow discharge; peripheral regions of device electrodes are separated and protected against breakdown by means of electric insulator; flow organizing means is disposed upstream of cathode. |
 Chemical element vapor pulse-periodic laser / 2254651Proposed laser has gas-discharge tube, high-voltage rectifier, resonant charging choke, charging diode, storage capacitor, thyratron, generator, feed-through capacitor, negative bias source, and power supply. Gas-discharge tube is placed in cavity. High-voltage rectifier is coupled through one of its outputs witch input of resonant charging choke. Generator output is electrically connected via feed-through capacitor to gate electrode that functions as thyratron grid. Negative bias source is connected to gate electrode. High-voltage rectifier is coupled through its other output with storage capacitor. Second lead of the latter is connected through charging diode to output of resonant charging choke. Common generator output is connected to thyratron cathode. Thyratron anode is electrically connected to storage capacitor and to charging diode. Thyratron cathode is coupled with gas-discharge tube anode and has decoupling filter and two storage capacitors. Decoupling filter is made in the form of two inductance coils. |
 Space-saving pulsed gas laser and magnetic pulse compressing device for its excitation / 2254650Proposed laser has coaxial sectionalized discharge cell forming low-inductance power transmission line with pulse shaping circuit connected to central electrode, and thyratron placed in conducting shell which is part of common low-inductance power transmission line. Pulse shaping circuit made in the form of magnetic pulse compressing device has saturating reactors inductively and capacitively coupled with discharge tube mounted in magnetic pulse compressing device. Laser has coaxial sectionalized discharge cell with gas gap between plates. Gas gap thickness to discharge tube wall thickness ratio is higher than dielectric constant of discharge tube material. Sheet-steel ballast capacitors are disposed coaxially to discharge cell and symmetrically to magnetic pulse compressing device. The latter uses parallel circuit arrangement for connecting magnetic compression power lines. Each line incorporates additional saturating reactor in first section. Parallel-connected to ground are limiting saturating reactor and peaking capacitor. |
 Laser projector and device for shaping laser beam of visible-spectrum blue region for laser projector / 2254649Proposed laser projector designed for projecting color images on screen has first laser cavity incorporating active medium in the form of organic dye for shaping laser beam of visible-spectrum blue region, second laser cavity incorporating active medium in the form of organic dye for shaping laser beam of visible-spectrum green region, third laser cavity incorporating active medium in the form of organic dye for shaping laser beam of visible-spectrum red region, optical pumping source for shaping pumping beams and feeding them to mentioned active media of first, second and third laser cavities, respectively, that incorporates Nd-element laser, and means for projecting mentioned laser cavity shaped beams on screen. Nd-element laser is designed for generating beams of wavelength about 1.32 μm in order to extend service life of organic dye used for shaping blue-region laser beam; optical pumping source has mentioned-beam third harmonic shaper for feeding mentioned third harmonic as pumping beam to active medium of first laser cavity. |
 High-frequency excited co2 waveguide laser / 2244367Proposed laser has two channels of which first one functions as discharge channel, as well as high-reflection and light-splitting mirrors installed at ends of discharge channel. Each channel is bound on opposite ends with extreme and central electrodes and on two other ends, with insulating wafers. One of extreme electrodes has rectangular longitudinal slot of depth L ≥ 1.5h and width H ≥ h + 1 to form insulating space together with closest second channel holding additional working gas supply, where h is discharge channel width. |
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High-frequency excited co2 waveguide laser / 2244367 Proposed laser has two channels of which first one functions as discharge channel, as well as high-reflection and light-splitting mirrors installed at ends of discharge channel. Each channel is bound on opposite ends with extreme and central electrodes and on two other ends, with insulating wafers. One of extreme electrodes has rectangular longitudinal slot of depth L ≥ 1.5h and width H ≥ h + 1 to form insulating space together with closest second channel holding additional working gas supply, where h is discharge channel width. |
 Tunable laser / 2244368Laser has case accommodating cavity incorporating active medium, output mirror, and spectral-selective element in the form of diffraction grating. Grating set up in bezel is connected through first adjusting mechanism to loose end of moving lever. Other end of the latter is locked in position by means of spherical supports in U-shaped flange connected through second adjusting mechanism to laser case. Loose end of moving lever is kinematically coupled with micrometer screw. Provision for individual and independent adjustment of dispersion plane of diffraction grating and axis of revolution of moving lever, with this position being maintained in the course of operation, ensures steady and reliable functioning of laser under all mechanical and environmental impacts. |
 Cross-discharge co2 laser / 2244369Proposed laser has discharge structure forming electrodes, working surface of at least one of them being covered with gold; gas fill incorporating carbon monoxide CO, carbon dioxide CO2, and helium He, proportion of ingredients being as follows, volume percent: CO, 4 - 30; CO2, 4 - 20; He - 50 - 92. Effective oxidation of CO to CO2 both in discharge space and on gold surface of electrodes enables maintenance of desired radiation power within long sealed-off operating period of laser. |
 Method and device for producing laser beam / 2244990Proposed method used for producing beam from pulse-periodic laser pumped with self-maintained spatial discharge with XeXl, KrF, CO2, and HF base active means includes formation of at least one electrode of a number of plasma generations near effective surface with self-maintained spatial discharge producing repetitive plasma structure and generation of laser beam. Plasma generations are formed in any plane perpendicular to optical axis of laser near effective surface of at least one of electrodes, its size being smaller than maximal size of plasma generation at one repetition period of plasma structure and smaller than or equal to size of laser radiation beam produced in same plane near effective surface of mentioned electrode. Device implementing this method has at least two opposing electrodes connected to common buses of pumping source and optical cavity; at least one of electrodes is made of repetitive parts each having its respective effective surface. Repetitive electrode parts are installed either in planes parallel to optical axis of laser or in those disposed at acute angle to this axis, or in cylindrical surfaces with generating lines perpendicular to optical axis of laser and guides of these surfaces in the form of curves or broken lines. Such design ensures desired energy distribution for various processes. |
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Method and device for producing laser beam / 2244990 Proposed method used for producing beam from pulse-periodic laser pumped with self-maintained spatial discharge with XeXl, KrF, CO2, and HF base active means includes formation of at least one electrode of a number of plasma generations near effective surface with self-maintained spatial discharge producing repetitive plasma structure and generation of laser beam. Plasma generations are formed in any plane perpendicular to optical axis of laser near effective surface of at least one of electrodes, its size being smaller than maximal size of plasma generation at one repetition period of plasma structure and smaller than or equal to size of laser radiation beam produced in same plane near effective surface of mentioned electrode. Device implementing this method has at least two opposing electrodes connected to common buses of pumping source and optical cavity; at least one of electrodes is made of repetitive parts each having its respective effective surface. Repetitive electrode parts are installed either in planes parallel to optical axis of laser or in those disposed at acute angle to this axis, or in cylindrical surfaces with generating lines perpendicular to optical axis of laser and guides of these surfaces in the form of curves or broken lines. Such design ensures desired energy distribution for various processes. |
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Laser material / 2245597 Proposed laser material based on organic dyes and polymers has in its composition rhodamine 6G, polymer, as well as p- and f-metal trifluoroacetate, proportion of components being as follows, mass percent: rhodamine 6G, 0.0054-0.2715; metal trifluoroacetate, 0.0150-2.4900; polymer, the rest. |
 Chemical oxygen-iodine laser / 2246783Proposed oxygen-iodine laser has singlet oxygen generator with built-in gas flow guides, iodine injector, nozzle assembly, and optical cavity; iodine injector, nozzle assembly, and optical cavity are disposed between inner surfaces of guide inside singlet oxygen generator. |
 Singlet oxygen generator using forming threads / 2246784Proposed singlet oxygen generator has case, chlorine injector, throttling valve, and solution injector. Inserted in each hole of injector are at least two forming threads disposed at hole ends with gap formed in-between. Solution jet escaping the hole is then formed in its downward motion over surfaces of threads and between them. When chlorine flows between solution jets, chlorination reaction of alkali solution of hydrogen peroxide takes place; in the process singlet oxygen is produced and chlorine is recovered. Threads may pass from one hole at certain angle to one another, or they may cross one another, or come in contact with threads of other hole in solution injector. At least two threads provided in solution injector hole make it possible not only to guide the thread but also to control its flow and to form desired geometry of jet characteristic by varying relative position of threads in jet. Such design enables development of various types of singlet oxygen generators characterized in enlarged reaction surface and operating effectiveness with added advantage of enhanced operating reliability due to steady flow of jet between threads. |
FIELD: optics.
SUBSTANCE: method for transferring optical pulses by several laser beams includes forming a central laser beam and cover around it in form of tunnel. Tunnel is formed by one beam or a set of beams, contacting each other. Tunnel is made also with possible rotation relatively to central beam and consists of two portions, formed by set of oppositely directed beams.
EFFECT: increased range of effect, higher resistance to interference.
2 cl, 6 dwg
The invention relates to systems for the transmission of the pulses and signals in different parts of the spectral range and can be used in anchoring systems of objects and information transfer.
There is a method of transmitting optical pulses of the two laser beams of different frequencies. (Application for the invention 2001124339 JP. The method and apparatus of generating ultrashort optical pulses using Raman resonator. Imasaka Todaro, 2000).
The disadvantage of this method is small, the transmission distance of optical pulses and a lack of security.
There is also known a method of transmitting optical pulses by use of laser beams and their combination in the generation process. (RF patent 2205426. The way of seeing objects using laser illumination and device for its implementation. Atnashev V.B. have been, 2003).
The disadvantage of this method is the limited range of fixation of objects in complex environments, which reduces the efficiency of the method.
The closest technical solution to the present invention is a method of transmitting optical pulses multiple laser beams, namely, that form the Central laser beam, and a shell around it in the form of a tunnel formed from multiple laser beams in contact with each other. (see Patent germ the Institute DE 19806298 A1).
The disadvantage of this method is the limited range of the broadcasting of the Central beam and the insufficient degree of protection that reduces the effectiveness of the method.
When creating the present invention has been tasked to develop an efficient method of transmitting optical pulses, allowing to increase the range of their broadcast and the degree of protection through the use of a beam of laser rays.
This object is achieved in that in the known method of transmission of optical pulses multiple laser beams in the form of a Central laser beam and shell around it in the form of a tunnel formation of the tunnel is performed by the beam colliding beams, the contact between them, and the tunnel is formed with a possibility of rotation relative to the Central beam.
This allows to improve the transmission efficiency of the optical pulses through the tunnel by increasing their range of broadcasting, protection from the harmful effects of various radiations or purposeful influence on the transmitted pulse.
Asking the tunnel rotation relative to the Central beam, it is possible thereby to reduce the number of rays that form the tunnel, and to help improve the security of the process of transmission of optical pulses.
Forming a tunnel of multiple beams allowed is to open it in a given area and to perform the necessary influence or testing of the Central beam.
In addition, the formation of the tunnel beam colliding beams, the contact between, will reduce the effect of attenuation, to increase the range of the transmitting optical pulses and their protection.
All of the above set of features, ultimately aimed at achieving tasks, namely to increase the efficiency of the method of transmission of optical pulses.
The invention is illustrated by drawings, where
figure 1 shows a diagram of the transmission of optical pulses through a continuous tunnel;
figure 2 - transfer of optical pulses through a tunnel formed by a single beam;
figure 3 - transfer of optical pulses through the tunnel formed by the beam;
figure 4 - the same, but the tunnel is formed with a gap relative to the Central beam;
figure 5 is a variant of the opening of the tunnel in the specified area test;
figure 6 is a variant of the tunnelling of the beam opposite rays.
The method is implemented as follows.
Included emitter 1 for the formation of tunnel 2 (figure 1). While inside the tunnel 2 a zone of low humidity, which increases the quality of transmission of impulses from the Central beam 3 and the range of their broadcast. Then on the source pulse 4 for transmitting pulses of beam 3 in the tunnel 2. The pulses are accepted by the receiver 5, and the doctrine 2, for example, a laser that is absorbed by the receiver 6 and is converted into electrical energy for later use.
When working on relatively short distances it is advisable to form the tunnel 2 is continuous, using a single radiation source (figure 2). In the far distance is effective to form a rotating tunnel of the beam 7 in contact with each other (figure 3). With the aim of reducing the effects of radiation protective tunnel 2 on the Central beam 3, it is expedient to establish between them a gap (figure 4).
To perform work associated with the testing of the Central beam 3 or other operations that produce spin-tunnel 2 and the disabling of one of the protective rays 7, to form a window 8 in the specified area of the test (figure 5).
To increase the range of the transmitting pulses form the tunnel 2 from beam colliding beams 7 and 9 (6).
1. The transfer method of the optical pulses of the multiple laser beams in the form of a Central laser beam and shell around it in the form of a tunnel, wherein the forming of the tunnel is performed by the beam colliding beams, the contact between them.
2. The method according to claim 1, wherein the tunnel is formed with a possibility of rotation relative to the Central beam.