Energia-aseet: laser ym.

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[video=youtube]http://www.youtube.com/watch?feature=player_embedded&v=kgUnDeED9MM[/video]

Lockheed Martin has demonstrated the Area Defense Anti-Munitions (ADAM) system in multiple tests against free-flying Qassam-like rocket targets. The prototype laser system has destroyed eight small-caliber rocket targets in flight at a range of approximately 1.5 kilometers (0.9 miles) in tests conducted in March and April 2013.

http://www.spacedaily.com/reports/Lockheed_Martin_Demonstrates_ADAM_Ground_Based_Laser_System_in_Increasingly_Complex_Tests_Against_Free_Flying_Rockets_999.html

 

[Raveni]

[video=youtube]http://www.youtube.com/watch?feature=player_embedded&v=kgUnDeED9MM[/video]

Lockheed Martin has demonstrated the Area Defense Anti-Munitions (ADAM) system in multiple tests against free-flying Qassam-like rocket targets. The prototype laser system has destroyed eight small-caliber rocket targets in flight at a range of approximately 1.5 kilometers (0.9 miles) in tests conducted in March and April 2013.

http://www.spacedaily.com/reports/Lockheed_Martin_Demonstrates_ADAM_Ground_Based_Laser_System_in_Increasingly_Complex_Tests_Against_Free_Flying_Rockets_999.html

Tämä on sitä tulevaisuutta ilmatorjunnassa. Yksi laukaus maksaa tulevaisuudessa niin vähän että tuolla voidaan korvata monen, monet it järjestelmät.

 

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The Boeing Thin Disk Laser system, which integrates a series of high-power industrial lasers to generate one concentrated, high-energy beam, exceeded required thresholds for power and beam quality during a demonstration for the Department of Defense's Robust Electric Laser Initiative (RELI) effort.

The high-power, solid-state laser system output reached more than 30 kilowatts – nearly 30 percent more power than RELI requirements – while simultaneously measuring excellent efficiency.

A high-power, solid-state, directed energy weapon can provide pinpoint accuracy to precisely destroy or disable a target with little to no collateral damage. Directed energy weapons such as the Thin Disk Laser system will provide military customers with precision targeting for a variety of tactical missions.

"These demonstrations prove the military utility of laser systems," said Michael Rinn, Boeing Directed Energy Systems vice president and program director. "In order to be truly viable as a weapons-class system, a laser must achieve high brightness while simultaneously remaining efficient at higher power. Our team has shown that we have the necessary power, the beam quality, and the efficiency to deliver such a system to the battlefield."

The demonstrations were the first time the Boeing system simultaneously achieved high beam quality at high power. Combining these two factors results in a measure of brightness, and the brightness measured by the Boeing system is among the best measured to-date by anyone in the industry.

Solid-state lasers are powered by electricity, making them mobile and supportable on the battlefield. The Boeing system incorporates a series of commercial, solid-state lasers that have proven to be extremely reliable while requiring low levels of support and maintenance.

http://boeing.mediaroom.com/Boeing-Thin-Disk-Laser-Exceeds-Performance-Requirements-During-Testing

 

[ctg]

Valo-miekka..... mmmmmmm Mitenköhän kauan menee ennenkuin tämän keksintö löytää tiensä sotilaslasuihin?

Harvard and MIT scientists are challenging the conventional wisdom about light, and they didn't need to go to a galaxy far, far away to do it.

Working with colleagues at the Harvard-MIT Center for Ultracold Atoms, a group led by Harvard Professor of Physics Mikhail Lukin and MIT Professor of Physics Vladan Vuletic have managed to coax photons into binding together to form molecules – a state of matter that, until recently, had been purely theoretical. The work is described in a September 25 paper in Nature.

The discovery, Lukin said, runs contrary to decades of accepted wisdom about the nature of light. Photons have long been described as massless particles which don't interact with each other – shine two laser beams at each other, he said, and they simply pass through one another.

"Photonic molecules," however, behave less like traditional lasers and more like something you might find in science fiction – the light saber.

http://phys.org/news/2013-09-scientists-never-before-seen.html

 

[ctg]

Rheinmetall demonstrated its high-energy laser (HEL) effectors to an international audience of potential customers on 22-24 October at its Ochsenboden test range in Switzerland.

....

This was followed by a 20 kW laser consisting of two 10 kW HEL laser effectors mounted in a container carried by an 8 x 8 Tatra truck demonstrating its anti-infrastructure capabilities by cutting an electricity pole, thus interrupting the power supply to a radar. The containerized system also destroyed boxes of ammunition.

The afternoon began with a 5 kW/10 kW mobile HEL effector mounted in a GTK Boxer wheeled armored transport vehicle setting jerry cans full of fuel on fire. It then went on to dazzle an eight-rotor vertical takeoff UAV, albeit carrying a steel ball so it could be detected by Skyguard 3. Finally, the wheeled HEL effector engaged a technical - a pickup truck mounting a heavy machine gun - by burning through the cartridge of its ammunition belt, rendering it unusable.

The day ended with the same 30 kW HEL effector that began the day shooting down three JT-240 jet UAVs in quick succession.

http://www.aviationweek.com/Blogs.a...79a7Post:f4bf6b76-4c25-48c4-82db-35956ef7c9cc

 

[ctg]

Pic The US military has successfully tested a truck armed with an auto-targeting laser that can shoot down mortars and flying drones in the air before they cause a kerfuffle for troops on the ground.

Battlefield lasers at last ... Uncle Sam's ray-gun truck


In month-long tests at the White Sands missile range in new Mexico, the High Energy Laser Mobile Demonstrator (HELMD) blew up 90 mortar rounds and several aerial drones using a 10kW-class laser mounted on an armored vehicle.

"We had considerable success," Terry Bauer, Army program manager for HELMD told the Christian Science Monitor.

The HELMD system uses radar (or as the military calls it "Enhanced Multi Mode Radar") to track targets and focus the laser on them. Once locked, the laser raises the temperature of mortar shells to the point where the explosives they contain combust.

"It falls as a single piece of metal with a little bit of shrapnel. It basically falls where it was going to fall, but it doesn’t explode when it hits the ground," Bauer said. “We turn it into a rock, basically.”

Boeing, which developed the system for the US Army Space and Missile Defense Command/Army Forces Strategic Command, said the technology is now ready for an upgrade so that it can carry a 50kW laser, with a more powerful 100kW unit also in the pipeline.

Eventually the military want to use the system to shoot down incoming cruise missiles, rockets and artillery shells, although it'll need some improvements before then. Mortar shells are relatively slow moving and have a trajectory that's easy to predict, but a cruise missile flying a variable course will be a much tougher target to destroy.

Soldiers on deployment in America's many ongoing wars probably won’t get to see the system in action before they are retired. The HELMD system probably won’t be ready for deployment until 2022 at the earliest.

However, El Reg suggests the boffins in the military read Arthur C Clarke's short story Superiority – which is on the reading list for industrial design students at MIT, and describes the dangers of such advanced weapons systems. A highly visible laser truck is going to be the first thing any enemy will want to take out. ®

http://www.theregister.co.uk/2013/12/13/us_military_laser_truck_destroys_mortars_drones/

 

[ctg]

En ole varma mihin laittaa tämän, koska meillä ei ole Laser ja Säde teknologioille omaa threadia.

Northrop Grumman has announced an agreement to collaborate with Trex Enterprises Corporation to bring celestial navigation technology to the precision targeting capability provided to the U.S. military and allied forces.

Trex Enterprises has developed and matured the core technology for providing a highly accurate celestial navigation subsystem for use in military products and scientific applications. Northrop Grumman has entered into a licensing agreement with Trex Enterprises that allows Northrop Grumman to produce and integrate this celestial navigation capability into ground targeting systems which offers greater precision in locating targets.

"The integration of celestial navigation technology marks an important milestone on the precision targeting technology roadmap," said Gordon Stewart, vice president and general manager of Northrop Grumman's Laser Systems business unit.

"We will continue to refine and grow the application of celestial navigation for precision targeting across our production laser systems for U.S. and coalition warfighters."

Northrop Grumman has successfully completed formal qualification for its ground soldier targeting system with the celestial navigation enhancement and is delivering systems to support the immediate needs of deployed soldiers.

"Trex is excited to collaborate with Northrop Grumman to further advance and mature our celestial navigation technologies and products," said Ken Tang, chairman and CEO of Trex Enterprises.

"The synergy between Trex research and development expertise and Northrop Grumman engineering and production capability will surely increase and accelerate benefits to our soldiers."

A privately held company with headquarters in San Diego, Calif., Trex Enterprises Corporation is a diversified high-technology company specializing in cutting-edge technical solutions and products to improve performance across the electromagnetic spectrum.

Northrop Grumman Laser Systems has fielded thousands of portable, lightweight targeting and laser systems for ground troops and ground vehicles and is one of the world's leading manufacturers of military electro-optical (EO) targeting systems.

These systems include ground-based (man-portable, handheld and vehicle-mounted) EO imaging/ranging systems for target location, laser designators/markers for precise guidance of smart munitions, and airborne laser rangefinders and designators fielded onboard many of the world's most sophisticated manned and unmanned aircraft.

http://www.gpsdaily.com/reports/Nor...er_Precision_Targeting_Laser_Systems_999.html

 

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BOTHELL, Wash., Jan. 28, 2014 – Lockheed Martin has demonstrated a 30-kilowatt electric fiber laser, the highest power ever documented while retaining beam quality and electrical efficiency.

The internally funded research and development program culminated in this demonstration, which was achieved by combining many fiber lasers into a single, near-perfect quality beam of light—all while using approximately 50 percent less electricity than alternative solid-state laser technologies. The unique process, called Spectral Beam Combining, sends beams from multiple fiber laser modules, each with a unique wavelength, into a combiner that forms a single, powerful, high quality beam.

“Lockheed Martin has opened the aperture for high power, electrically driven laser systems suitable for military applications,” said Dr. Ray O. Johnson, senior vice president and chief technology officer of Lockheed Martin. “Advancements in available laser components, along with the maturity and quality of our innovative beam-combining technology, support our goal of providing lightweight and rugged laser weapon systems for use on military platforms such as aircraft, helicopters, ships and trucks.”

The successful demonstration marks a significant milestone on the path to deploying a mission-relevant laser weapon system for a wide range of air, land and sea military platforms.

Prior laser weapon demonstrations in the industry showed target acquisition, tracking and destruction. However, these solutions were limited for tactical military use because their laser inefficiencies drove significant size, power and cooling needs not readily supported by key military ground and airborne platforms.

“The high-energy laser serves as the heart of a laser weapon system,” said Dr. Johnson. “This 30-kilowatt milestone shows our commitment to producing the high beam quality and high power needed to address a variety of military ‘speed-of-light’ defensive operations.”

Lockheed Martin has specialized in directed energy laser weapon system development for the past 30 years and purchased Aculight in 2008 to further strengthen its offerings at every level—from expert advice and pioneering research to solid prototyping and flexible manufacturing.

http://www.lockheedmartin.com/us/ne...tes-weapons-grade-high-power-fiber-laser.html

 

[OldSkool]

Tuossa edeltävässä uutisessa on pätkiä joita en kerta kaikkiaan ymmärrä. Jos yhdistetään 30 laseria yhteen niin onhan se 30 kappaletta. Mutta kun niillä ei ole sama aallonpituus ja vaihe, niin se ei saavuta vallankumouksellista vaikutustehon kasvua...? Voinhan minäkin kärrätä pihaani 30 kappaletta 33cm3 moottorisahoja. Mutta tukki halkeaisi eri tavalla 1000 cm3 apukoneen pyörittämällä sirkkelillä.

 

[ctg]

Olet oikeassa, se on yhtäaikaa kolkyt kipaletta ja yksi, sillä ne kolmekymmentä aaltoa menee päällekkäin ja muodostaa yhden säteen. Ja jos olen ymmärtänyt oikein niin he ovat hakeneet tässä ratkaisussa sitä, että ne kolkyt sädettä kohteessa on parempi kuin pelkästään yksi, joten jos vain pelkällä yhdellä säteellä lämmittää niin se kestää paljon kauemmin kuin kimppu säteitä samassa kohteessa. Tulevaisuudessa säteen tehoja ruvetaan varmaan säätämään, enkä usko että kestää montaakaa vuotta ennenkuin me näemme 100kW lasun ja sitä seuraavan megawatin kapistuksen.

 

[SJ]

Olet oikeassa, se on yhtäaikaa kolkyt kipaletta ja yksi, sillä ne kolmekymmentä aaltoa menee päällekkäin ja muodostaa yhden säteen. Ja jos olen ymmärtänyt oikein niin he ovat hakeneet tässä ratkaisussa sitä, että ne kolkyt sädettä kohteessa on parempi kuin pelkästään yksi, joten jos vain pelkällä yhdellä säteellä lämmittää niin se kestää paljon kauemmin kuin kimppu säteitä samassa kohteessa. Tulevaisuudessa säteen tehoja ruvetaan varmaan säätämään, enkä usko että kestää montaakaa vuotta ennenkuin me näemme 100kW lasun ja sitä seuraavan megawatin kapistuksen.

Siis juttuhan on siinä, että ne eivät kykene valmistamaan mitään järjettömän tehokasta laseria millään käytännöllisellä tavalla, joten on pakko laittaa niitä useampi rinnakkain.

 

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Siis juttuhan on siinä, että ne eivät kykene valmistamaan mitään järjettömän tehokasta laseria millään käytännöllisellä tavalla, joten on pakko laittaa niitä useampi rinnakkain.

Mitä tarkoitat rinnakkain? Monta rivissä?

Se mistä minä puhuin on että kaikki nuo säteet, jotka on eri taajuuksilla, kohdistetaan samaan pisteeseen jotta saadaan aikaan nopeampi reaktio, kuin niitä ammuttaisiin kohteeseen rivissä, missä yksi säde lämmittää yhtä kohtaa ja seuraava kohtaa siinä vieressä.

 

[SJ]

Mitä tarkoitat rinnakkain? Monta rivissä?

Se mistä minä puhuin on että kaikki nuo säteet, jotka on eri taajuuksilla, kohdistetaan samaan pisteeseen jotta saadaan aikaan nopeampi reaktio, kuin niitä ammuttaisiin kohteeseen rivissä, missä yksi säde lämmittää yhtä kohtaa ja seuraava kohtaa siinä vieressä.

Muodostelmalla ei liene väliä, vaan sillä, että niitä on useampi. Yhtä isoa ei pystytä valmistamaan, niin sitten kehitetään tapa jolla saadaan sama aikaan useammalla pienellä.

 

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Totta, voihan se olla että esim kolme ajoneuvoa rivissä suuntaa samaan kohteeseen ja saa samaan aikaan nopeamman reaktion kohteessa kuin käyttämällä vain yhtä, mutta tuo samalla muodostaa ongelman, jos nuo kolme sädetintä ei ole tarpeeksi nopeita reakoimaan massahyökkäykseen.

 

[ctg]

Rupesin selvittelemään sitä, että miten paljon se laser-ase kuumenee, ja vastaan tuli Carlo Koppin Directed Energy Weapons -juttu. Jutussa kerrotaan, että jokunen vuosi sitten (tehokkaimpien, kaasulasereiden) laseraseiden hyötysuhde oli parhaimmillaan 20%, joten polttoaineen tehosta 80% suihkutettiin laitteesta pihalle. Lentokoneen tapauksessa rungon alapuolelta, siipien välistä sijaitsevista pakoaukoista. Siis: kyllä ne laitteet kuumenee, kun kerran laser-ilmiön aikaansaamiseksi kaasut on jossain 1000-2000 celsiusta lämpötilassa. Mutta jutusta ei vielä käynyt selville se, miten hyvin kaasupurkaussysteemi puhaltaa lämmöt pihalle, tai kauanko jäähdytettävä ja miten. Laivassa ja lentokoneessa jäähdyttämiseen on virtaavaa vilpoista ainetta saatavilla vierestä. Ajoneuvoaseessa vaikeampaa. YAL-1A:n suunnitteluperuste oli se, että lentokonelaser tuhoaa parikymmentä ohjusta 12-18 tuntia kestävän lentonsa aikana.

Nuo kaasut ei ole ongelma jos Brittien Skylon moottorin patentointu jäähdytysratkaisu otetaan käyttöön, sillä se saa sekunnissa viilennettyä nuo kuumat kaasut heidän moottorilleen sopivaksi. Mutta ongelma on että he eivät halua myydä sitä tälläisiin ratkaisuihin.

As the air passes thorough the Pre-cooler tube matrix it is evenly cooled and the temperature plummets from 1,000°C to minus 150°C.

The SABRE Pre-coolers incorporate two major new innovations. The first is the spiral arrangement of the tubes which makes the heat exchanger more efficient.

The other innovation is a frost control system that prevents water vapour in the air from forming frost during low temperature operation which if uncontrolled can completely block the Pre-cooler in a matter of seconds. The details of this frost control system are confidential.

http://www.reactionengines.co.uk/heatex_work.html

 

[JOKO]

Uutisen kuvailu kuulostaa käänteiseltä prismalta. Normaalisti prisma hajottaa näkyvän valon eri väreinä näkyviin allonpituuksiin. Käyttämällä eri aallonpituuksien laasereita, voidaan useampi laaseri tähdätä eri suunnilta samaan prismaan. Johtuen taittumiseroista eri aallonpituuksilla, taittuvat kaikki erilliset säteet yhdeksi voimakkaaksi säteeksi

 

[hessukessu]

Saisko tuommoisen tietokoneeseen kiinni, voisi olla tehokas jäähdytysratkaisu ylikellotukseen? ;-)

 

[Charlyn_enkelit]

Jos lentokoneessa tai ohjuksessa on peilipinta, niin laserit ei haittaa

 

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The US military dreams of a small but powerful laser weapon that can zap enemy rockets and drones from a safe distance. But weapons that have been demonstrated so far have been too big and heavy to fit on-board humvees and fighter jets. They’re also notoriously difficult to cool.

So key players in the defense industry have turned to fiber lasers to make the military's dream a reality.

Lockheed Martin said last week that it has demonstrated a 30kW fiber laser. In May 2013, Lockheed was able to shoot down rockets with a portable 10kW fiber laser from about 1.5 km. The company claims in a press release that this latest achievement is “the highest power ever documented while retaining beam quality and electrical efficiency” and that the fiber laser consumes half the power of more conventional solid-state laser.

MBDA Systems, Raytheon, and Northrop Grumman have all reported their own high-power fiber laser weapon feats in the past couple years. In October 2012, MBDA Systems’ German subsidiary used its 40kW system to shoot down airborne artillery from a distance of 2 km. The 40kW system was built with four 10kW sources provided by industrial fiber laser maker IPG Photonics. Northrop Grumman is also busy developing high-power fiber lasers through various military contracts, including the Army’s Robust Electric Laser Initiative.

Fiber lasers use a special type of optical fiber as the light-emitting material, as opposed to the neodymium-doped crystals used in conventional solid-state lasers. Because the fiber can be coiled, developers can pack more power into a compact system. They can be up to two times more efficient than traditional solid-state lasers, and the larger surface-to-volume ratio of the fibers makes them much easier to cool.

They do have a power limitation, though. Single-fiber lasers can’t achieve high power and beam quality. So most high-power systems, including Lockheed Martin's, combine beams from multiple fiber laser beam modules into a single high-quality beam. Some believe that the military's 100-kW benchmark power output for a laser weapon could be challenging to reach with fiber lasers.

That benchmark came about from an Army project from over a decade ago, which established that destroying a moving target from a kilometer or two away requires 100kW, mainly to overcome the spreading of the laser beam. But lasers have come a long way since, and as IEEE Spectrum outlines in the article "Ray Guns Get Real", some experts question the necessity of a 100-kW laser system. The recent demonstrations mentioned above certainly show that lasers delivering tens of kilowatts could be of use.

The real test for fiber lasers could come later this year, when the US Navy installs its laser weapon system on the USS Ponce transport ship, two years ahead of schedule. The Navy showed in 2010 that its laser weapon system, developed by Raytheon, could shoot down unmanned aerial vehicles.

http://spectrum.ieee.org/tech-talk/...martin-shows-off-highpower-fiber-laser-weapon

 

[SJ]

Jos lentokoneessa tai ohjuksessa on peilipinta, niin laserit ei haittaa

Arvatenkin koska se peili heijastaa 100% siitä energiasta pois, vai? Ikävää vaan, että sellaista pintaa ei ole vielä kehitetty joka heijastaisi 100% energiasta. Loput tuppaavat absorboitumaan ja sitten menee pinta pilalle.