Laser Weapons Emerge as Low-Cost Shield Against Drones and Missiles, but Technical Hurdles Remain

As conflicts across the Middle East increasingly feature drone strikes and missile attacks, defense planners are exploring a technology long associated with science fiction: directed-energy laser weapons.

Military analysts say these systems could eventually become one of the cheapest methods to intercept airborne threats, particularly unmanned aircraft used in attacks on oil facilities and military installations.

The financial contrast between laser weapons and conventional missile defenses is striking.

Firing a laser beam to destroy a target can cost only a few dollars per shot — sometimes estimated at $3.50 — while launching a traditional interceptor missile, such as the Patriot system,m can exceed $3 million for a single engagement.

This dramatic difference has fueled renewed interest in the technology.

Political and Military Enthusiasm

Former US President Donald Trump recently highlighted the potential of laser-based defense during remarks to journalists, suggesting that these weapons could soon perform the same job as missile interceptors but at a fraction of the cost.

According to Trump, the technology being developed in the United States has advanced significantly and may soon become operational.

While the concept is not new, leaders in the defense sector believe that recent progress in optics and energy systems could make battlefield lasers far more practical than earlier prototypes.

For decades, US defense agencies have invested in the pursuit of a weapon capable of hitting targets instantly at the speed of light while eliminating the need for traditional ammunition.

Such a capability would dramatically alter air defense economics, especially when facing large numbers of inexpensive drones.

How Laser Weapons Disable Targets

Unlike missiles that physically strike their targets, high-energy lasers work by concentrating a powerful beam of light onto vulnerable points of an object.

When focused long enough, the intense heat can burn through structural material or destroy sensitive electronics.

David Stoudt, executive director of the Directed Energy Professional Society and a veteran engineer who helped design systems to defeat roadside bombs in Iraq, compared the effect to aiming a distant blowtorch at a target.

However, the process is not instantaneous. Similar to using a magnifying glass to focus sunlight, the beam must remain locked onto a drone for several seconds to cause enough damage to disable it.

Weather and Physics Create Limitations

Because lasers rely on concentrated light, environmental conditions can significantly affect their performance. Cloud cover, moisture in the air, and atmospheric particles can weaken or distort the beam before it reaches its target.

Jared Keller, who writes the defense technology newsletter Laser Wars, cautions that these systems should not be viewed as futuristic “ray guns” capable of destroying objects immediately.

According to Keller, the technology is constrained by basic physical laws. Rain, fog, humidity, or airborne dust can scatter or bend the beam, reducing its power and making accurate targeting more difficult.

Additionally, optical components used in these systems are extremely delicate. Salt spray from the sea, desert sand, or other debris can damage the lenses and mirrors that guide the beam, potentially complicating maintenance in battlefield conditions.

Early Deployments Reveal Challenges

The US military has already experimented with deploying laser defenses. In 2024, four 50-kilowatt laser units were installed to help defend American bases in Iraq from drone attacks.

According to a report by the Washington-based think tank Center for a New American Security, troops who used the systems described them as difficult to operate and less effective than expected, highlighting the gap between experimental technology and practical battlefield use.

Industry Experts Urge Realistic Expectations

Scott Keeney, chief executive of nLight, a Washington state company that manufactures advanced laser equipment for both industrial and military applications, said the technology has improved considerably, but should not be exaggerated.

He noted that directed-energy weapons will likely become more common over time, yet they cannot solve every defensive challenge.

A laser producing 100 kilowatts of power, Keeney explained, generates energy roughly comparable to half the output of a typical car engine.

When concentrated into a tight beam, however, that energy is strong enough to damage aircraft components such as engines.

Potential Risks Beyond the Battlefield

While military planners focus on defensive uses, lasers also present risks for civilian aviation. Even handheld laser pointers can temporarily blind pilots or interfere with cockpit visibility, creating dangerous situations.

The Federal Aviation Administration (FAA) recorded nearly 11,000 incidents involving lasers directed at aircraft last year, demonstrating the potential hazards posed by such devices.

Global Race to Develop Laser Defenses

Several countries are pursuing similar technology. Israel, which faces frequent rocket and drone threats, has been testing a system known as Iron Beam, developed by Rafael Advanced Defense Systems.

Although the company delivered a 100-kilowatt version of Iron Beam in December, Israeli officials say the weapon is still undergoing testing and has not yet been deployed in active combat operations.

Elsewhere, Australia’s defense contractor Electro Optic Systems recently agreed to supply South Korea with a 100-kilowatt laser defense system, while Ukrainian engineers have drawn international attention with Sunray, a compact laser weapon reportedly small enough to fit inside a car trunk.

China has also entered the competition. In September, Beijing revealed a 180-kilowatt ship-mounted laser system known as the LY-1, signaling its growing investment in directed-energy weapons.

High Development Costs

Despite their low operating cost per shot, the systems themselves remain expensive to build. In 2018, Lockheed Martin received a $150 million contract to develop two prototype laser systems for the US Navy.

One result of that project is HELIOS (High Energy Laser with Integrated Optical-dazzler and Surveillance), a 60-kilowatt weapon installed on the destroyer USS Preble stationed in Japan.

The Navy continues to evaluate whether the system’s optical equipment can withstand prolonged exposure to harsh maritime conditions such as humidity and saltwater.

Reports have occasionally confused HELIOS with another ship-based system called ODIN, which uses intense light to temporarily disable or confuse drones rather than physically destroy them.

Supply Chain Obstacles

Producing laser weapons on a large scale could prove difficult due to supply chain constraints. A report by the National Defense Industrial Association noted that many key materials required for high-performance lasers depend on rare elements.

For example, specialized optical glass used in these systems often incorporates ytterbium, a rare-earth metal largely controlled by Chinese exports.

High-power laser components also rely on gallium-based semiconductors, another material dominated by Chinese production.

Because of these limitations, manufacturers can currently produce only small quantities of laser systems, often with long manufacturing timelines.

Expanding production would require major increases in the supply of precision optics, energy storage units, beam-control mechanisms, and other specialized components.

The Road Ahead

While directed-energy weapons promise a future where defending against drones could become far cheaper, experts say widespread deployment may still be years away.

Technical challenges, environmental limitations, and supply chain constraints must all be addressed before lasers can replace traditional missile defenses.

For now, military planners see them as an additional layer of protection rather than a complete substitute for conventional weapons.

( The Article originally appeared in the New York Times.)

#LaserWeapons #DirectedEnergy #DroneDefense #MilitaryTechnology #MiddleEastSecurity #IronBeam #HELIOS #FutureWarfare #DefenseInnovation #GlobalSecurity