The Hidden Systems That Make Lasers Work

Introduction

The low cost of a laser shot is one of the most frequently cited advantages of directed energy weapons. Yet a laser does not become a practical weapon simply because it can generate a powerful beam. Before a target can be damaged, the system must detect it, identify it, track it, predict its movement and keep the beam precisely focused on the same point for long enough to produce an effect. Those functions depend on sensors, software, stabilised optics and combat-system integration rather than the laser itself.

In many modern programmes, the hidden cost lies in turning the beam into part of a complete sensing and engagement network. The result is a paradox: the electricity used for a shot may cost only a few pounds, but the supporting systems required to make that shot effective can account for a large share of the weapon’s total cost. [RTX]rtx.comHigh-Energy Lasers | RaytheonThis directed energy technology enables detection of threats, tracking during maneuvers, and positive vis…

Why the Beam Is Only One Part of the Weapon

A military laser cannot simply point in the general direction of a threat and expect success. Unlike a missile, which carries its own guidance system after launch, a laser must continuously maintain energy on a specific spot on the target. Even a small drone moving unpredictably can break that engagement if tracking is lost for a fraction of a second.

To achieve this, modern laser weapons combine multiple subsystems:

The laser itself is therefore only one component within a larger targeting architecture. Raytheon, for example, describes high-energy laser systems as requiring the ability to detect threats, track them during manoeuvres and positively identify them before engagement. Those sensing and tracking functions are fundamental to weapon effectiveness rather than optional add-ons. [RTX]rtx.comHigh-Energy Lasers | RaytheonThis directed energy technology enables detection of threats, tracking during maneuvers, and positive vis…

This requirement helps explain why defence organisations increasingly describe directed-energy systems as integrated weapons rather than standalone lasers. The U.S. Navy’s HELIOS programme—High Energy Laser with Integrated Optical-dazzler and Surveillance—was explicitly designed as a combined surveillance, tracking and engagement system rather than merely a beam projector. [Lockheed Martin]lockheedmartin.commore than a laser helios is an integrated weapon systemLockheed MartinMore Than a Laser, HELIOS is an Integrated Weapon System9 Jan 2021 — The High Energy Laser with Integrated Optical-dazzler…

Tracking Drones Long Enough to Defeat Them

The Dwell-Time Problem

Many threats targeted by laser weapons, especially drones, are not destroyed instantly. The beam often needs to remain on a vulnerable location for several seconds before structural damage, sensor failure or overheating occurs.

That requirement creates a demanding tracking challenge. A small quadcopter may change direction rapidly, present a limited target area and operate against a cluttered background. Wind, atmospheric distortion and platform vibration can further complicate the engagement. If the beam wanders, the heating effect may disperse and the target may survive. [Sentrycs+2ndia.org]sentrycs.comDirected Energy Weapons (DEW)Directed Energy Weapons use electromagnetic energy to disable drones. Learn how HEL lasers and HPM s…

As a result, significant engineering effort goes into keeping the beam centred on a moving target. Defence analyses of high-energy laser systems highlight the importance of beam sensors, steering mirrors, pointing telescopes and precision tracking loops that constantly adjust aim during an engagement. [dia.mil]dia.milState of the Art and Evolution of High-Energy Laser WeaponsApril 28, 2025 — 31 Mar 2010 — Laser beam sensors and steering mirrors are req…Published: April 28, 2025

Why Sensors Become a Cost Driver

The sensor package often has to operate across different conditions:

A military-grade electro-optical and infrared suite capable of performing these tasks is not inexpensive. It requires high-performance optics, image processing hardware, stabilisation systems and software capable of distinguishing threats from background clutter. The more demanding the mission, the more sophisticated the sensor architecture becomes. [ndia.org]ndia.orgDIRECTED ENERGY WEAPON SUPPLY CHAINS1 Jan 2024 — Tracking: The tracking system, often integrated into the beam director, employs various…

This is one reason why defeating drones is not simply a matter of increasing laser power. A more powerful beam is of limited value if the system cannot maintain precise target tracking long enough to exploit that power.

Combat Tests Reflect the Full Chain

Recent DragonFire trials in the United Kingdom demonstrated not only laser firing but also the complete sequence of detection, tracking, beam handoff and sustained engagement against fast-moving aerial targets. The successful interception of high-speed drones depended on the entire targeting chain working together, not solely on laser output. [Tom's Hardware]tomshardware.comuk confirms dragonfire laser weapon for royal navy destroyers by 2027This follows a £316 million ($414 million) contract awarded to MBDA UK for the first two production units. DragonFire, a 50 kW-class lase…

The practical lesson is that operational effectiveness emerges from sensor performance and tracking accuracy as much as from raw beam energy.

Why Platform-Specific Integration Raises Costs

A laser weapon rarely operates independently. Modern militaries increasingly expect it to share information with radars, command networks, threat databases and other defensive systems.

That requirement creates expensive integration work. On a warship, for example, the laser may need to receive target tracks from shipboard radar, exchange information with combat-management software and operate within existing engagement procedures. HELIOS was developed specifically for integration with the Navy’s Aegis combat system, allowing sensor data and engagement information to become part of a wider defensive network. [nationaldefensemagazine.org+2PR Newswire]nationaldefensemagazine.orgnavy to fully integrate laser into aegis combat system15 Feb 2021 — HELIOS is a 60-kilowatt solid-state laser capable of scalable effects, which can “dazzle” and blind sensors, but at high po…

This integration effort involves far more than installing hardware. Engineers must:

Each platform introduces unique challenges. A destroyer, armoured vehicle and aircraft all have different power systems, vibration environments, space constraints and command architectures. Consequently, moving a laser from one platform to another often requires substantial redesign and testing rather than a simple transfer of equipment. [Defence Science Review]com.plpdf 216776 135052Defence Science ReviewDEFENCE SCIENCE REVIEWJanuary 17, 2026 — by A Karkadakattil · 2026 · Cited by 1 — Objectives: This review aims to e…

The Hidden Economics of Sensor Fit

The economics of laser weapons are often presented as a comparison between a cheap laser shot and an expensive missile. That comparison is real, but it overlooks the systems needed to make the shot count.

A laser can only exploit its low marginal firing cost when it is embedded within a sophisticated network of sensors, tracking algorithms, beam-control hardware and combat-management software. Programmes such as HELIOS illustrate this reality by combining surveillance, target tracking, counter-drone functions and weapon effects into a single integrated package. Development contracts and integration efforts have therefore focused as much on sensing and control as on the laser source itself. [PR Newswire]prnewswire.comPR NewswireLockheed Martin Receives $150 Million Contract to Deliver…1 Mar 2018 — HELIOS will be the first Department of Defense contr…

In practice, the decisive question is not whether a beam is cheap to fire. It is whether the system can reliably find, identify and hold that beam on a target under combat conditions. The answer depends largely on the hidden sensor architecture surrounding the laser, and that architecture is often where a significant share of the cost resides. [RTX+2Sentrycs]rtx.comHigh-Energy Lasers | RaytheonThis directed energy technology enables detection of threats, tracking during maneuvers, and positive vis…

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Endnotes

1. Source: rtx.com
   Link: https://www.rtx.com/raytheon/what-we-do/integrated-air-and-missile-defense/lasers
   Source snippet

   High-Energy Lasers | RaytheonThis directed energy technology enables detection of threats, tracking during maneuvers, and positive vis...

2. Source: dia.mil
   Link: https://www.dia.mil/FOIA/FOIA-Electronic-Reading-Room/FileId/237622/
   Source snippet

   State of the Art and Evolution of High-Energy Laser WeaponsApril 28, 2025 — 31 Mar 2010 — Laser beam sensors and steering mirrors are req...

   Published: April 28, 2025

3. Source: ndia.org
   Link: https://www.ndia.org/-/media/ndia-eti/reports/directed-energy-weapon-supply-chains/directedenergyweaponsreportdeeti.pdf
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   DIRECTED ENERGY WEAPON SUPPLY CHAINS1 Jan 2024 — Tracking: The tracking system, often integrated into the beam director, employs various...

4. Source: sentrycs.com
   Link: https://sentrycs.com/glossary/directed-energy-weapons-dew/
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   Directed Energy Weapons (DEW)Directed Energy Weapons use electromagnetic energy to disable drones. Learn how HEL lasers and HPM s...

5. Source: nationaldefensemagazine.org
   Title: navy to fully integrate laser into aegis combat system
   Link: https://www.nationaldefensemagazine.org/articles/2021/2/15/navy-to-fully-integrate-laser-into-aegis-combat-system
   Source snippet

   15 Feb 2021 — HELIOS is a 60-kilowatt solid-state laser capable of scalable effects, which can “dazzle” and blind sensors, but at high po...

6. Source: lockheedmartin.com
   Title: more than a laser helios is an integrated weapon system
   Link: https://www.lockheedmartin.com/en-us/news/features/2021/more-than-a-laser-helios-is-an-integrated-weapon-system.html
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   Lockheed MartinMore Than a Laser, HELIOS is an Integrated Weapon System9 Jan 2021 — The High Energy Laser with Integrated Optical-dazzler...

7. Source: prnewswire.com
   Link: https://www.prnewswire.com/news-releases/lockheed-martin-receives-150-million-contract-to-deliver-integrated-high-energy-laser-weapon-systems-to-us-navy-300606676.html
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   PR NewswireLockheed Martin Receives $150 Million Contract to Deliver...1 Mar 2018 — HELIOS will be the first Department of Defense contr...

8. Source: tomshardware.com
   Title: uk confirms dragonfire laser weapon for royal navy destroyers by 2027
   Link: https://www.tomshardware.com/tech-industry/uk-confirms-dragonfire-laser-weapon-for-royal-navy-destroyers-by-2027
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   This follows a £316 million ($414 million) contract awarded to MBDA UK for the first two production units. DragonFire, a 50 kW-class lase...

9. Source: defencesciencereview.com.pl
   Title: pdf 216776 135052
   Link: https://www.defencesciencereview.com.pl/pdf-216776-135052?filename=Laser-Based-[Directed-Ener
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   Defence Science ReviewDEFENCE SCIENCE REVIEWJanuary 17, 2026 — by A Karkadakattil · 2026 · Cited by 1 — Objectives: This review aims to e...

   Published: January 17, 2026

10. Source: lockheedmartin.com
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    Directed Energy | Lockheed MartinExperience the potential of our laser weapons and directed energy weapon technologies, providing afforda...

11. Source: breakingdefense.com
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    What Does It Take To Out-Maneuver Enemy Drones?4 Oct 2021 — Semiconductor diode lasers spread out and diffuse over distances, which, on t...

12. Source: Wikipedia
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    HELIOSHELIOS [1] is a Lockheed Martin-developed 60 kilowatt high-energy laser weapon designed to intercept combat drones, fast-attack...

13. Source: airpower.airforce.gov.au
    Title: airforce.gov.au Directed Energy Weapons
    Link: https://airpower.airforce.gov.au/sites/default/files/2021-03/BPAF03_Directed-Energy-Weapons.pdf
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    Energy Weapons - Air and Space Power CentreA DEW is a weapon system that uses an energy source and a pointing system to control the deliv...

Additional References

1. Source: researchgate.net
   Link: https://www.researchgate.net/publication/403676537Laser-Based_Directed_Energy_Weapons_Technological_Capabilities_Material_Interaction_and_Strategic[Deployment
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   (PDF) Laser-Based Directed Energy WeaponsThis review aims to evaluate the current capabilities of laser-based Directed Energy Weapons (DE...

2. Source: militaryembedded.com
   Link: https://militaryembedded.com/radar-ew/test/helios-laser-weapon-system-to-begin-testing-and-integration-with-navy
   Source snippet

   HELIOS laser weapon system to begin testing and...The US Navy will field the first acquisition program to deploy the High Energy Laser w...

3. Source: eos-aus.com
   Link: https://eos-aus.com/defence/high-energy-laser-weapon/
   Source snippet

   High Energy Laser WeaponApollo is a high energy laser weapon system designed to defeat Group 1–3 UAS, with power levels up to 150kW and t...

4. Source: inss.ndu.edu
   Link: https://inss.ndu.edu/Research-and-Commentary/View-Publications/Article/4412653/laser-focusing-defense-capabilities/
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   Laser-focusing Defense CapabilitiesHigh-power lasers can defeat UAS by rapidly heating and structurally compromising control surfaces, pr...

5. Source: instagram.com
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   Modern warfare is entering a new era with directed-energy...HELIOS also integrates advanced sensors and optical dazzlers, which can temp...

6. Source: facebook.com
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   The U.S. Navy has tested a high-energy laser system...HELIOS is integrated with the Navy's Aegis Combat System, enabling it to track and...

7. Source: linkedin.com
   Link: https://www.linkedin.com/pulse/technical-evolution-operational-integration-light-based-robi-sen-hhdoc
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   tected while reducing Ceffector to a very low marginal cost per shot...Read more...

8. Source: youtube.com
   Title: First trial on British Army vehicle for high-powered laser weapon
   Link: https://www.youtube.com/watch?v=p5Nf8VLCtSw
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   This overview of the US Navy HELIOS system illustrates how an operational laser weapon must integrate advanced intelligence, surveillance...

9. Source: strategicmarketresearch.com
   Link: https://www.strategicmarketresearch.com/market-report/military-laser-systems-market
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   5.2 billion in 2024 to USD 8.3 billion by 2030, driven by directed...

10. Source: facebook.com
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    i-drone lasers, one of which will be mounted on a frigate...