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The first time does not join the gravitational waves, after the same time, the two beams of light return, and in the spectroscope to re-meet, resulting in interference. This time by adjusting the X, Y arm length, control the two beams are canceled, then the photodiode no optical signal. After the second test to join the gravitational wave, the gravitational waves from the direction perpendicular to the ceiling into the arms of the arm will be stretched, the other arm compression is short, so that the two light optical path difference has changed, the original coherent The conditions of destruction are destroyed, a certain amount of light will enter the detector, get the gravitational wave signal. The advantage of themost powerful laserinterferometer for the resonant bar is obvious: First, the laser interferometer can detect a range of frequency of the gravitational wave signal is generally 20Hz-3000Hz; Second, the laser interferometer arm length can be done very long, such as ground gravity wave interference The arm length of the instrument is generally in the order of 1000 meters, far more than the length of the magnets of the magnets, so that the gravitational waves will be displayed through the photodetector.

At the beginning of the production chain, aluminum or copper foil is first coated and compressed to produce an electrode foil. The anode needs to use copper, while the cathode uses aluminum as the carrier material. The foil is made through a coil and needs to be cut into flakes by a cutting or cutting process. The advanced technology currently used in the production process is mechanical cutting. However, the main drawback of mechanical cutting foils is that the cutting tool produces very high mechanical wear. Therefore, the tool must be replaced frequently, which will result in additional tool costs and fluctuations in the quality of the cutting. In the next step, the taps of the electrode foil need to be welded together. Today, the most advanced technology used in this process isgreen laser pointerwelding or ultrasonic welding. The technical challenge in this production step is to weld thin foil with copper-copper, aluminum-aluminum or aluminum-copper and other materials. In addition, for high quality battery cells, the resistance value of the melting zone is required to be very low.

In recent years, further miniaturization and improved quality requirements for ultra-precision machining are growing. As a means of meeting this need, the use of short-pulse, short-wavelength laser processing methods has attracted attention. By using a picosecond pulsed laser, it is possible to achieve a cold ablation that does not produce a thermal effect, thereby obtaining a high-precision machining excellent in quality. In addition, the use of short wavelength lasers can make the laser beam spot diameter smaller, in order to achieve more fine micro-processing.

At present, common short pulse lasers for microfabrication are mainly green lasers (532nm), followed by ultraviolet lasers (355nm). On the other hand, a 266 nm deep ultravioletburning laserhas not been widely used due to its difficult handling.

Usually a small crack will cause the glass to break. Once the microcracks are formed in a part of the glass, it will spread to the edge of the glass, causing rupture. This fragile property of the glass makes it difficult to process. On the other hand, the evolving technology allows it to be made into smaller, and different shapes of glass for use in different areas. Traditional precision methods such as lithography and electron beam lithography to process glass, but these techniques are too expensive to operate, especially for large areas. Today,green astronomy lasertechnology provides the most accurate way to process glass. The most straightforward way is to use a single photon absorption in the wavelength range, the glass in the infrared or ultraviolet light will not be highly transparent.

At present, when it comes to automatic vehicle environment awareness technology, many people will first think of lidar. Indeed, compared to on-board sensors such as cameras and millimeter wave radars, lidar has the advantages of high accuracy and high resolution, and has been widely deployed on many automatic test vehicles. But this technology also has its disadvantages: high cost can not be ignored, such as the Ibeo LUX 4 lineblue laserradar, the price as high as $15 thousand, while Google announced that although at the beginning of its independent development of the laser radar can reduce the cost of 90%, each still $7500. Such a high price is clearly unrealistic for an eventual self driving car.

Therefore, how to find a lower cost environment aware solution has become the concern of many enterprises. Comparatively speaking, the vision navigation technology with "camera + software" is easier to achieve. Visual navigation, as the name suggests is through the visual camera to capture image information, to obtain the position and direction of moving objects in space and other environmental information, and the information obtained is dealt with by a certain algorithm, the environment model, and find an optimal or near optimal collision free path, to achieve safe movement to reach the destination.

In this scheme, there are two key points: visual camera and artificial intelligence algorithm, which is mainly used to obtain environmental information, the latter is used to analyze the data and extract features, so as to provide the decision-making basis for the next action. Compared with thered laserradar, the visual environment perception technology oriented solutions, more mature technology, R & D threshold and lower cost, so in the past two years with the computer vision technology matures, as well as the rapid development of the Internet, artificial intelligence, cloud computing and other emerging technologies, has gained more and more attention to the automatic driving related enterprises. One of the most representative enterprise is tesla.

Because you need to consider how to sell things, so first of all consider the relatively low price of the program. Laser radar is not yet mass-produced, expensive and can not produce enough value at the moment, but it does not rule out the use of lidar after the price cuts. However, lidar is so difficult to reduce costs, when prices can fall to meet the production requirements, and can be accepted by most enterprises, who do not know. On the other hand, with the field of automatic driving companies to promote their products to the production process, these enterprises not much time, and are in a laser radar technology to better to find other more feasible in the short term, there may be landing technology.

Visual perception as a lower cost and large data can solve the problem of technology roadmap, although compared toburning laserradar, there are many advantages, it is easier to promote automatic driving car commercialization. But the route itself faces some technical difficulties. The AI decision algorithm is critical to handling navigation problems with visual perception. Visual distance measurement, for example, when the visual camera input some environmental images, through the relevant calculation, we can reverse the performance of the car from the house, pedestrians, lights distance. So here must be ranging algorithm is good enough to test accurate, accurate positioning.

Ultra-high-speed imaging technology provides researchers with the best view of the atomic world. Molecules and atoms in the space beating, spinning, seems to be dancing in the serious dance, they continue to twist until a molecular chain is broken, while the other happens to "click" card in place. From the theory of molecular structure so far, chemists use this imagination method has been more than 150 years. Now, these imaginations will become reality. Researchers use a series of techniques in the lab for the "director film" of the molecule.

The team uses a string of 40 fs long X-ray pulses for initialburning laser pointerbombardment, resulting in a diffraction pattern showing the atomic position. These diffraction patterns were made into a "film" and found that about 550 fs of laser light was stimulated by the sensitized yellow protein, and the isomeric phenomenon occurred. "This is a huge surprise because it does not exist only in the moment," says Petra Fromme, a biochemist at the University of Arizona, a member of the research team. "This completely changed our perception of this response."

However, the researchers gradually began to focus on individual molecules. Individual molecules are subject to quantum mechanics rather than classical mechanics. Classic mechanics is used to regulate the statistical law of the characteristics of bulk materials, so completely independent imagination of molecular movement may be able to expose their "life photos", not just a "collective photo." As research groups around the world have developed new ways to capture single molecule movements, they are exploring the ability of these technologies to observe molecules from different perspectives, and they have found that some of these techniques can scan atoms more precisely in space while others can In a very short period of time to capture the molecules.

The history of molecular photography can be traced back to the 1980s, when scientists put forward molecular snapshots. This advanced technique is called pumping spectroscopy, using ablue laser pointerpulse that lasts only a few femtoseconds to trigger a chemical reaction. After the moment, the second femtosecond pulse arrives and reacts with the molecules in the specimen. This changes the way the detector detects light and shoots a "photo" of a molecule. By repeating the experiment again and again to change the delay between the two pulses, the researchers were able to build a flip book to show every stage of the chemical change.

This technique shows how the interior of a chemical reaction works by means of femtosecond chemistry, revealing the characteristics of transient intermediates when individual molecules are transformed into another molecule, which has never been seen in the past. But the5000mw laser pointerwavelength used in femtosecond chemistry is longer than the distance between atoms, so it can not directly derive the position of atoms in the molecule.

The all-optical program to achieve particle acceleration has attracted a lot of attention in the past two decades with its potential advantage in dramatically reducing the scale and cost of accelerators. The plasma generated by the laser can maintain a very high acceleration gradient, whereby efficient acceleration of the charged particles can be achieved. In particular, in recent years, the use of tail wave field technology to achieve electronic acceleration has made important progress, the resulting particle beam quality and traditional accelerator produced can be compared. Efforts to accelerate laser-driven ion acceleration are also currently being experimentally achieved by the so-called sheath-field acceleration mechanism: the potential gradient in the sheath field causes the ions emitted from the surface of the30mw laser pointerirradiated foil to be accelerated. The ion beam produced by this mechanism has some unique properties, but there are some limitations in terms of energy spectrum, dispersion and divergence angle, which seriously hinders their practical application.

By further attaching a coil device on the rear surface of the foil, a further acceleration of theburning laser-driven ion from the foil target is experimentally achieved. The coil not only improves the energy of the ions, but also achieves ion alignment in a narrow energy range. In addition, by sequentially arranging the coils and targets, a cascade accelerator with beam dynamic collimation and energy selectivity can be constructed. Dr. Satya Karr believes that this progress for the next generation of ultra-compact, low-cost particle accelerator laid the foundation for the advanced accelerator technology to provide a small increase.

In the experiment, the coil is mainly through the guidance of ultra-short electromagnetic pulse along the direction of its spiral transmission to work, while the laser-driven ions along the coil axis direction. The radial component of the electric field generated by the electromagnetic pulse is of sufficient strength to bond the proton to the vicinity of the coil axis while the longitudinal component of the electric field accelerates the conducting ions. As reported in the above paper, the principle validation experiment using the laboratory-scalehigh power laser, the realization of the effective proton after the acceleration, acceleration efficiency of 500 MeV / m, much higher than the traditional accelerator technology can be achieved.

The success of this program relies heavily on the understanding of the electromagnetic pulse and its propagation along the coil. The researchers used a self-probing technique to study the propagation of electromagnetic pulses in helical coils in situ from two aspects of transverse and longitudinal, respectively, using laser-driven protons.
The researchers used the transverse detection mode to characterize the time domain distribution of electromagnetic pulses transmitted along helical coils. The experimental results show that the characteristics are similar to those of the previous geometric situation measurements, as shown in Fig. On the other hand, the300mw laser pointerlongitudinal detection of the coil illustrates the effect of the ultrashort characteristics of the electromagnetic pulse on the proton beam, that is, the field generated by the electromagnetic pulse will reduce the divergence of the proton beam, which is energy dependent. By increasing the length of the coil, the focusing field plays a role over a longer period of time, whereby the height of the proton beam can be focused. These results help to understand the intrinsic mechanism of helical coil target selective ionization, and it is also beneficial for the further development of this technique.

Fiber laser development so far, high anti-material processing has been limited to the application of fiber lasers a major pain point. Especially gold and silver copper and other metal materials, low absorption rate, laser processing will produce a lot of reflected light. These reflected light, or cause fiber laser protection to shut down to cause waste, or directly damage the fiber1mw laser pointer. QCW fiber laser due to its 5-10 times the peak power of traditional continuous lasers, you can instantly ionize the high anti-material, increase the absorption rate, reduce the reflection, with some high-reflective material processing. However, QCW fiber lasers only 1 / 10-1 / 5 of the average power of conventional CW fiber lasers, resulting in slow processing speed and expensive lasers. And the current QCW fiber laser on the ultra-high reflectivity of sterling silver can not guarantee a high yield.

At present, laser welding diamond saw blade process there are still some problems, we need to conduct further research, to carry out special laser welding diamond saw carcass or transition layer material formula research, to carry out new ultra-fine or nano-pre-alloy powder research, The research on the mechanism of laser welding of diamond saw blades, especially the research of temperature field, flow field, mass field and stress field of5mw green laserwelding diamond saw blade and the on-line quality monitoring technology of laser welding diamond saw blade process are carried out. In fact, only a comprehensive understanding of the mechanism of laser welding diamond saw blade, it may be developed accordingly the new online quality monitoring technology; only master the theory of pre-alloy powder, it is possible to develop a new ultra-fine or nano-alloy powder and Better use of new ultra-fine or nano-pre-alloy powder to develop a dedicated diamond saw blade.

Free electron laser is known as the fourth generation of light source, can provide from far infrared to X-ray band of high-intensity coherent radiation, in physics, chemistry, materials science, life sciences and other fields with unprecedented revolutionary value. The traditional free electron laser based on the RF accelerator to produce high-energy electron beam, and then use the periodic arrangement of the magnet composed of the wave device to tweak and modulation of the electron beam, and finally radiation of high-intensity coherent radiation. Either the RF electron accelerator or the electronic amplifiers made of periodic magnets are bulky and expensive. The development of miniaturized, low-cost, new generation of free-electron lasers, including desktop electronic accelerators and ripples, is a major goal ever pursued by the scientific community.

Laser processing equipment demand continues to expand, the advantages of the platform to help Han's100mw laser pointertechnology to fully benefit from laser technology has become an important means of advanced manufacturing technology and upgrading of traditional industries. Panel industry competition pattern is undergoing profound changes, the domestic panel manufacturers are playing a decisive role in the entire panel industry, the future of domestic production line panels using domestic laser equipment is the trend. Dazu laser with a full set of panel production line of laser equipment supply capacity, the domestic OLED production line panel production line and its related products is expected to be applied to the LCD laser equipment upgrades and subsequent batches of investment and construction, in order to become an important thrust of future performance of the company.

With the fiber laser and fiber laser cutting machine prices continue to decline and performance continues to improve, fiber lasers have become the basic choice for metal sheet metal cutting. Medium power fiber laser, the average power of less than 1200 watts. The vast majority of medium power fiber50mw green laserproducts are single-mode fiber lasers, and the output QBH cable is between 15 and 50 microns. High-power fiber lasers, the average power of 1200 watts or more, and some manufacturers even introduced 12000 watts of high-power fiber lasers. Due to the single-module output power limitations, the vast majority of high-power fiber laser products are multi-mode fiber lasers, coupled by multiple single-mode fiber lasers to a high power laser beam splitter to the QBH output. The output QBH cable core is typically between 50 and 200 microns.

Ultra-narrow linewidth lasers are used not only for atomic clocks but also for certain types of spectroscopy, coherent optical communications, and interferometric sensors. In addition to wavelength stability, phase noise is also important for these lasers. Phase noise is the deviation of the time-varying electric field of the 50mw green laserbeam from the pure sine wave. In addition, the presence of phase noise limits the resolution of the system used by the laser; and the phase noise of this ultra-precision laser is difficult to measure.

Comparison of three Yahz line linewidth lasers to achieve the derivation of each phase noise. These lasers are ultra-stable laser diodes that emit wavelengths of 1542 nanometers, each locked in their respective ultra-stable optical resonators with a frequency difference between the lasers of less than 600 MHz. When measuring each laser, the other two lasers are used as a reference object. The researchers measured the phase noise power spectral density in the Fourier frequency range of 0.5 Hz to 0.8 MHz. They determined that the noise of the cross-correlator itself was very low - much lower than any ultra-wide-line200mw green laser. These three lasers reduce the phase noise of less than 2 / π to a 0.5 Hz Fourier frequency.

Experts say that many of the vibration of the Big Ben metal is too small to see the naked eye, but we can use the laser to get more than 500 measurements on the surface of the Big Ben, which can not be achieved by the previous technology. The results show that Big Ben is thicker and heavier than other similar sized clocks, and because of its frequency and intensity affected by the bell's profile, its diameter produces many different vibrations or patterns, which results in unexpected higher pitch The

In order to achieve this breakthrough, it is necessary to significantly enhance the output power of industrial grade ultrafast pulse lasers. With several megawatts of peak power and very short pulse duration (about one trillionth of a second), ultrafast pulse100mw laser pointerare ideal tools for high-precision machining of many materials, such as high-strength protective glass for optical displays. However, the current laser cutting technology, each laser pulse can be modified or removed the volume of the material subject to the available laser pulse energy size, thus affecting the cutting efficiency. This defect sets a good starting point for the ScULPT project, which will increase the processing yield by increasing the power of the laser pulse.

In addition to using new light sources, more R & D investment from increased laser power to improve processing efficiency. The development tasks include the construction of suitable fiber module induction and beam shaping adapters, as well as the optimization of synchronization between laser and beam scanning systems. In the middle of these companies and research institutions, project partners believe they have complete expertise to cover the entire industry chain, from basic research, reinforcement of beam sources, to400mw green laserprocessing of industrial glass and metals.

Metal is a shiny, ductile material, therefore, most of the metal can be made beautiful, exquisite handicrafts or jewelry, such as gold rings, silver necklaces, iron products and so on. The starting absorbance of the metal pair of 10.6 μmbrightest laser pointerbeam is only 0.5% to 10%. However, when a focused laser beam having a power density exceeding 106 w / cm2 is irradiated onto the metal surface, it can be made in a microsecond time The surface begins to melt. The absorption rate of most metals in the molten state rises sharply, generally by 60% to 80%.

Laser cutting is the use of high-density laser beam scanning the surface of the material in a very short period of time the material heated to tens of thousands to tens of thousands of degrees Celsius, the material melting or gasification, and then high-pressure gas will melt or gasification material from the slit Blow away to achieve the purpose of cutting materials. Laser cutting technology is widely used in metal and non-metallic materials processing, can reduce the processing time, reduce processing costs, improve the quality of the workpiece. Xiaobian for everyone to analyze theburning laser pointercutting machine cutting several kinds of metal materials, specifically the following seven:

Processing Technology of Carbon Steel Laser Cutting Machine. Modern laser cutting system can cut the maximum thickness of carbon steel plate up to 20mm, the use of oxidative melting laser cutting machine cutting carbon steel slit can be controlled in a satisfactory width range, the thin section of the slit can be narrowed to 0.01mm or so.

Processing Technology of Stainless Steel Laser Cutting Machine. Fiber laser cutting machine for the manufacturing industry is an effective processing tool. In the strict control of the laser cutting process of heat input measures, you can limit the trimming heat affected zone becomes very small, so as to more effectively maintain the good corrosion resistance of such materials.

Processing Technology of Titanium and Alloy Laser Cutting Machine. Pure titanium can be a good combination of focusinggreen astronomy laserbeam transformation of thermal energy, auxiliary gas when the use of oxygen when the chemical reaction is intense, faster cutting, but easy to produce oxide layer in the trimming, careless also cause burning. For the sake of safety, the use of air as auxiliary gas is better to ensure the quality of cutting. Aircraft manufacturing industry commonly used titanium laser cutting quality is better, although the bottom of the slit will have a little sticky slag, but it is easy to clear.

Today, with the change of economic environment, laser cutting machine market demand, between the various brands, manufacturers of the competition has been white hot. In this regard, we can feel a new project of laser cutting machine needs less, fewer people buy inquiry, the equipment is difficult, payment period, customers are not so straightforward and generous, "began to carp...... These are the "business" is not good in performance, if such "a pile of messy performance carry out to solve, it will make people confused. However, if the current10000mw laser pointercutting machine industry competition is summed up, it can be attributed mainly to the brand, price and channel, and the several aspects of the service competition.

Laser cutting machine brand differentiation is the core advantage or personality differences products into the brand, to meet the individual needs of target customers. The success of the laser cutting machine brand has a different characteristic, are different from competitors, then in a form consistent from beginning to end brand differentiation and customer psychological needs connected by way of brand positioning accurate information to convey to the market, to occupy a favorable position in the minds of potential customers. The purpose is to create and develop certain characteristics for their laser cutting machine products, distinctive personality, establish a unique image of the market, which is different from competitors, and effectively determine the products in the minds of customers in the neutral position. In laser cutting machine enterprises and products more and more homogenization tendency, more and more similar products, competition is increasingly fierce, in order to break through, the enterprise must according to the selection strategy for brand positioning of their actual needs, find the appropriate market position for their own enterprises and products.

Ahigh power laser pointercutting machine brand has a high reputation, customers can get the praise, must be derived from the excellent quality and perfect service, this is not the basis of brand, excellent quality and perfect service, a good brand will be spurned by the customer. The performance in the market for the purchase of a laser cutting machine products, customers can continue to buy and recommend to other people's enthusiasm for the brand. Improve product and service quality is the premise to enhance the brand, it is directly related to whether a real brand and famous brand.

Here, the competition is divided into two parts: product quality and service quality. With the metal laser cutting machine in Chinese market more than and 10 years of rapid development, the entry threshold decreases rapidly, metal laser cutting machine is no longer mysterious, but because the processing level, each company's manufacturing precision difference caused by the brand products showed a larger difference in efficiency, consumption and stability etc., especially compared with foreign brands, even more so. In the higher energy consumption, environmental protection and product quality in the future, the role of market competition will become more and more prominent. The service includes pre-sale, sale and customer service service, including pre-sale and sale of services can be connected as a whole, as a kind of sales skills, this is the need to pay attention to the local sales staff. Customer service and service as a separate type of service, has been the laser cutting machine manufacturers, distributors pay more and more attention. Because it is not only a continuation of the service trade, is also a kind of marketing ideas and methods, to create their own high-end customer service service brand is the next5000mw laser pointercutting machine supplier actively practice direction. We can see that more than the manufacturer is proposed to strengthen the customer service service, a new understanding of customer service service agents at all levels.

But at the same time in the customer service service also has a negative phenomenon, one is the excess service, maintenance repair can not repair but for minor repair, change, repair changes theoverhaul; one is to recuperate, always room maintenance, a temporary solution needs, just like a quack "ear" the same; three is to get service at a low price, alternative way away the original customer service service items, but this type of service team maintenance work is simple and crude, easy money grab maintenance projects, or because the technology is not in place Difficult miscellaneous diseases caused by illness into serious illness would vanish without a trace. As a result, the relationship between tension, forming a vicious circle. The supplier believes himself to the meager profits of equipment will be sold to customers, not earn other profits in addition to provide warranty, once customers encounter problems difficult to solve, out of revenge: provide services either don't want to either increase the cost of service. That is their own money and customer equipment purchased, and the original customer service service price and the market price difference is large, you want to make service who let who service, but can not solve the problem encountered in the equipment, manufacturers, agents also need to do service obligations.

As a young subject, laser technology has brought about great changes in human science and technology, production and life. Whether in processing, scientific research, biology, cutting-edge technology and other fields, has a very large application space, and therefore sustained by domestic and foreign enterprises and research institutions attention, technology development. Since 2016, laser technology has also made a series of major breakthroughs, the following inventory ten annualburning laser pointertechnology progress.

Photon impact heating of nanoparticles was observed for the first time

Lucas Nowotny of ETH Zurich, Switzerland, led the research team, for the first time measured the photon and micro particles collision when the micro "shock" warming effect. The team used laser to limit the radius of about 50nm silica nanoparticles in the optical trap, the optical trap environment is a super vacuum chamber. The researchers used a method called feedback cooling process, which capture the particle's position is monitored, and the trap frequency accordingly modulation, pulling away particle energy and reduce the temperature of the particle to the micro level of Kelvin. In ambient pressure greater than 10e9, the minimum temperature of the particle temperature is determined by pressure. Under 10e9, no matter how much pressure, the minimum temperature does not change with pressure. This means that, at very low pressures, the dominant limiting cooling factor is the electromagnetic noise in the trap.

Next, the team shut down the feedback cooling process at very low pressures, allowing trapped photons to freely heat their particles. The gap between the energy states of the oscillating particles is larger than the magnitude of each individual photon collision recoil energy, so the simplest photon scattering energy does not affect the elastic particles. Sometimes, however, photons excite nanoparticles into a higher state of oscillation, which gradually heats up. This warming is random, but, by repeatedly, their average results, researchers succeeded in warming the smooth curves show that when trapped in ahigh power laser pointerparticle, faster heating rate.

Physicists break records of laser electron interactions

Over the past year, including the laser display, VR / AR, 3D holography, and other cutting-edge intelligent display technology in the multimedia audio-visual applications have high-light performance. 2016 is considered to be the first year of laser display, in the audio-visual industry is also homeopathic blowing a laser display cyclone. From the exhibition display to the conference center, from the command center to the stage performing arts, from home to theaters show ... ... the industry as the fourth generation of display technology,high power laser pointerdisplay technology, application development momentum has been overshadowed LED, OLED.

Up to now, the laser display light source has three primary colors of pure laser, phosphor laser, laser hybrid light source (laser and LED hybrid) three categories, each light source has its own advantages and disadvantages. Contrast, the three primary colors of pure laser advantage is more obvious. Three-color laser is regarded as the most orthodox laser light source. It has the advantages of wide color gamut, high luminous efficiency, long life, low power consumption, good consistency, stable color temperature, safe and reliable maintenance-free and flexible application.

This year, the laser projection display industry is another noteworthy trend is that the application of industry needs, personalized, customized, the overall solution and services to become a new industry to be solved. "Simple equipment supply has been difficult to meet the needs of users,laser pointersdisplay market is moving from product competition to solution competition." Dewey video "advanced vision" business executives in the interview said, including Dewey video, including Manufacturers are more concerned about the needs of end users, the search for innovative projection technology to solve the audio and video applications in the complex problems encountered. The difference between the laser display solutions and customized products, is Dewey video for the demand segmentation, the level of the answer after the idea.

Because the positioning is for the mass consumer market, laser TV received attention than the other members of the laser display family is much higher. Traditional home projector products, brightness, contrast, color and cost constitute a "performance paradox." That is, high contrast and bright environment requires the use of high brightness products, and mercury lamps often means that the high brightness of the decline in color, and the cost of the increase. Therefore, get out of the black house model is the home projector market, the biggest bottleneck. Theburning laser pointerproducts just to overcome this, the formation of the brightness, contrast and color of the three high positions. In 2016, laser TV has become a focus of the TV market. Although it is not the TV itself, but the first to find the size of laser TV and the balance of price, become the first choice for the current home theater. At present, laser TV lineup is also expanding, in addition to Dewey video, optical peak, Hisense, TCL, Changhong and other traditional TV manufacturers have begun to intervene, which makes laser TV this year or will usher in a new inflection point! , Laser TV popularity of the road is not far away.

Over the past year, the laser projection display technology has in the Rio Olympic opening ceremony, G20 variety show, the National Day celebration of Tiananmen Square and other grand events / performing arts highlight debut. Such as super-large-scale activities have been playing the role of black technology testing ground, is also the application of high-tech benchmark. In the domestic and international cultural and entertainment market unprecedented prosperity in the context of laser projection display applications will create a huge market space.

Although the laser from the date of birth, by the military's widespread attention, especially in the field of strategic anti missile. But because of the difficulties of the atmosphere, the optical attenuation, the heat dissipation and the target guidance, the development speed of the strategichigh power laser pointerweapon is very slow. But since twenty-first Century, the U.S. military once again starting to focus on the development of high power solid state laser, which is used to perform short-range air defense and Antimissile Defence, warship tactical mission, and the U.S. military said a mysterious weapon again ahead of competitors.

In high power solid state laser fiber tactical laser weapon, because of its obvious advantages in efficiency, laser beam quality, system size, weight, firmness and cooling etc., is becoming the main source of tactical laser weapon. Recently, the U.S. military developed a variety of laser weapons prototype, all fiber laser weapons. Such as the U.S. Defense Advanced Research Projects Agency (DARPA) regional defense against ammunition system of "rapier" project, the Navy tactical laser weapon system with laser weapon system project, the "army" (ADAM) and "Zeus Hummer laser ammunition to destroy the system" are used in fiber laser.

Among them, the "sword" is an airborneburning laser pointerweapons project, the goal is to reflect electricity or infrared-guided surface-to-air missiles, combat altitude of 15 km. The US Navy's Mk38 shipborne laser cannon combat target is a large number of intensive small vessels, sea ships, air vehicles and so on. In 2011, the laser gun fired on air and surface targets. The US Army's Regional Defense Anti-Ballistic System is primarily a threat to ground-based short-range air defense targets (rocket and unmanned aerial vehicles). In the 2012 and 2013 tests, the system successfully destroyed the UAV And small-caliber rockets. The "Zeus - Hummer laser ammunition destruction system" is installed in the famous "Hummer" car, with anti-mine and the ability to deal with roadside bombs.

In addition to the above, the US military there are some optical fiber tactical laser project. Now the US military tactical laser weapons for the development of very enthusiastic, in the "large area network" stage. The Pentagon in 2014 launched the third "offset strategy", the core is the development of disruptive advanced technology weapons, continue to occupy an absolute advantage in the military competition. US Deputy Secretary of Defense Robert Walker believes that the third "offset strategy" is to establish the core of the advantages of precision-guided weapons in the successful escape of enemy precision-guided attacks while destroying each other. Many US military experts also believe that tactical2000mw laser pointerweapons, is clearly the third "offset strategy" should focus on the development of the project.

China's research and development of 20,000-watt (20KW) fiber laser, can be applied to China's tactical laser weapons research and development? It is estimated that there is a distance. First of all, one of the key components of fiber laser weapons is single-mode fiber lasers. Its representative is the United States IPG photon 10KW single-mode fiber laser. In addition to being widely civilian, but also by the US military procurement of a large number of tactical laser weapons for the basic module. As mentioned above, the United States is developing and testing tactical laser weapons are mostly used by IPG's this product. The company first developed in 2009, after 10KW single-mode fiber laser, also made no secret of their interest in the weapons market.

According to the British "Daily Mail" recently reported that the world's largest manufacturer of Northrop Grumman radar is working with the US military, the next generation of supersonic fighters to develop newlaser pointerweapons, the power of abnormal terror. The weapon system, known as the directional energy system, is primarily used for self-protection of fighters and is placed in a special installation. US military research laboratory revealed that this system is expected to be installed in 2019 in the US supersonic fighter, into the test phase.

Directional energy weapons, also known as beam energy weapons, is the use of laser beam, particle beam, microwave beam, plasma beam, acoustic beam energy, resulting in high temperature, ionization, radiation, acoustic and other comprehensive effect, take the form of beam damage or damage the target A weapon. Second, the energy concentration, such as the output power of high-energy laser beam can reach several hundred to several thousand kilowatts, hit the first half of the energy of the high power laser pointerbeam output power can reach hundreds of thousands of kilowatts, The target is destroyed, burnt, or melted; in addition, because the laser beam or particle beam is emitted, they are gathered very fine, very sudden, so the other is difficult to find where the beam comes from, no time to maneuver, avoid or confrontation.

In fact, as early as the 1990s and early 2000s, the Department of Defense spent billions of dollars on directed-energy weapons development, albeit with lower-than-expected results, but directed energy technology has been developing steadily. In 2013, the US Navy demonstrated the ability to shoot enemy UAVs with carrier-based tactical lasers. In November 2014, the US Navy first used laser weapons to combat enemy boats at sea. At present, the United States is stepping up the development of the sixth generation of fighters, will be equipped with close-range self-defense laser and microwave directed energy weapons, allegedly close to the enemy can be achieved "spike."

This high-tech weapons most suitable for use in defensive tasks, and is expected to extend to the use of offensive combat missions. To anti-missile air defense laser weapon system, for example, when the long-range early warning radar to capture the target, the command and control system issued an attack command, issued by the burning laser pointerbeam to destroy the target. However, in view of high-power laser transmitter is still in the research stage, atmospheric laser "thermal halo" effect can not be effectively overcome, offensive laser weapons into combat applications still need time.

Compared with the corresponding kinetic energy weapon systems, directed energy weapons have a high cost-effectiveness ratio. Although the cost of each system is different, but the estimated launch cost of only $ 1 to $ 20, very affordable. If a new type of electric drive system can be on-site charge, the ammunition can be a substantial expansion, improve the viability of weapons platforms.