Laser è la sigla di light amplification by stimulated emission of radiation, che indica un dispositivo per ottenere fasci intensi ed estremamente concentrati di radiazioni elettromagnetiche coerenti nei campi infrarosso, visibile e ultravioletto.
«The U.S. Department of Defense (DoD) has made large investments weaponizing laser technology for air defense. Despite billions of dollars spent, there has not been a successful transition of a high-energy laser (HEL) weapon from the lab to the field. Is the dream of a low-cost-per-shot, deep-magazine, speed-of-light HEL weapon an impossible dream or a set of technologies that are ready to emerge on the modern battlefield? Because of the rapid revolution taking place in modern warfare that is making conventional defensive weapons very expensive relative to the offensive weapons systems, the pull for less expensive air defense may necessitate a HEL weapon system. Also, due to the recent technological developments in solid-state lasers (SSL), especially fiber lasers, used throughout manufacturing for cutting and welding, a HEL weapon finally may be able to meet all the requirements of ease of use, sustainability, and reliability. Due to changes in warfare and SSL technology advances, the era of HEL weapons isn’t over; it may be just starting if DoD takes an evolutionary approach to fielding a HEL weapon. The U.S. Navy, with its large ships and their available electric power, should lead the way.» [Optical Engineering52(2): 1008- · February 2013]
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«The US successfully tested a laser weapon that can destroy aircraft mid-flight»
«A US Navy warship has successfully tested a new high-energy laser weapon that can destroy aircraft mid-flight, the Navy’s Pacific Fleet said in a statement Friday»
«Images and videos provided by the Navy show the amphibious transport dock ship USS Portland executing “the first system-level implementation of a high-energy class solid-state laser” to disable an aerial drone aircraft»
«The images show the laser emanating from the deck of the warship. Short video clips show what appears to be the drone burning»
«The power of the weapon was not disclosed, but a 2018 report from the International Institute for Strategic Studies said it was expected to be a 150-kilowatt laser»
«With this new advanced capability, we are redefining war at sea for the Navy»
«The Navy says lasers, which it calls directed energy weapons (DEW), can be effective defenses against drones or armed small boats»
«We don’t worry about wind, we don’t worry about range, we don’t worry about anything else. We’re able to engage the targets at the speed of light.»
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Sviluppo e tecnologie laser sono protette da segreto militare: le informazioni rilasciate sono scarse e spesso contrastanti.
Quello riportato è uno dei primi test pubblicizzati di impiego sul campo di un’arma laser, di cui al momento si prospetta l’uso a difesa da droni, ossia aerei non a guida umana, usualmente subsonici, che volano a quote relativamente basse.
Significativo il fatto che l’annuncio sia stato dato dalla sede di Hong Kong della Cnn.
A US Navy warship has successfully tested a new high-energy laser weapon that can destroy aircraft mid-flight, the Navy’s Pacific Fleet said in a statement Friday.
Images and videos provided by the Navy show the amphibious transport dock ship USS Portland executing “the first system-level implementation of a high-energy class solid-state laser” to disable an aerial drone aircraft, the statement said.
The images show the laser emanating from the deck of the warship. Short video clips show what appears to be the drone burning.
The Navy did not give a specific location of the laser weapons system demonstrator (LWSD) test, saying only that it occurred in the Pacific on May 16.
The power of the weapon was not disclosed, but a 2018 report from the International Institute for Strategic Studies said it was expected to be a 150-kilowatt laser.
“By conducting advanced at sea tests against UAVs and small crafts, we will gain valuable information on the capabilities of the Solid State Laser Weapons System Demonstrator against potential threats,” Capt. Karrey Sanders, commanding officer of Portland, said in the statement.
“With this new advanced capability, we are redefining war at sea for the Navy.”
The Navy says lasers, which it calls directed energy weapons (DEW), can be effective defenses against drones or armed small boats.
“The Navy’s development of DEWs like the LWSD provide immediate warfighter benefits and provide the commander increased decision space and response options,” the statement said.
At the time, Lt. Cale Hughes, a laser weapons system officer, described how they work.
“It is throwing massive amounts of photons at an incoming object,” Hughes said. “We don’t worry about wind, we don’t worry about range, we don’t worry about anything else. We’re able to engage the targets at the speed of light.”
The Ponce was retired from service later that year.
Raytheon Co., a technology and innovation leader specializing in defense, civil government, and cybersecurity solutions, delivered the first high-energy laser counter-unmanned aerial system (UAS) to the U.S. Air Force earlier this month. The Air Force will deploy the system overseas as part of a year-long experiment, to test the system’s efficacy in real-world conditions and to train operators.
Raytheon’s high-energy laser weapon system uses an advanced variant of the company’s multispectral targeting system (MTS) — an electro-optical/infrared (EO/IR) sensor — to detect, identify, and track combative drones. Once targeted, the system engages with and neutralizes the aircraft in seconds.
“Five years ago, few people worried about the drone threat,” said Roy Azevedo, president of Raytheon Space and Airborne Systems. “Now, we hear about attacks or incursions all the time. Our customers saw this coming and asked us to develop a ready-now counter-UAS capability. We did just that by going from the drawing board to delivery in less than 24 months.”
Raytheon installed its high-energy laser weapon system (HELWS) on a small all-terrain vehicle. On a single charge from a standard 220-V outlet, the HELWS can deliver intelligence, surveillance, and reconnaissance capability, and dozens of precise laser shots. Paired with a generator, it can provide an almost unlimited number of shots.
Raytheon is integrating multiple proven technologies to counter UAS dangers across a wide range of targets, such as commercial airports, forward operating bases, and crowded stadiums. Raytheon’s portfolio of sensors, command and control (C2) systems, and kinetic and nonkinetic effectors offers effective defenses against the various threats posed by UASs.