Laser power beaming

Keep your drone on task.

Laser power delivered in flight. Demonstrated over 40 m to a drone and 1.5 km to a fixed receiver.

Prototype systems for integration and pilot evaluation.

Measured in separate test configurations

Demonstrated capabilities

40m

40 m drone demonstration

Power delivery to a drone over a 40 m link, with 20 W electrical output and a 15 g optical receiver.

1.5km

Roof-to-roof demonstration

A 1.5 km roof-to-roof link with a stationary receiver, studied across varied weather conditions.

Programs and support

ESA
PhotonHub Europe
Bpifrance
TechForward

The operational problem

Battery changes interrupt missions.

In a single-aircraft operation, landing to replace a battery interrupts aerial coverage. Overlapping flights can maintain coverage, but require additional aircraft and coordination.

Coverage gaps

The aircraft leaves its position while the mission continues without its aerial view.

Repeated handovers

Operators manage landing cycles, replacement batteries and relaunch alongside the mission.

How it works

How laser power beaming works

A controlled ground-to-air link connects the transmitter, tracking system and onboard receiver. Integration and operating conditions are evaluated for each mission.

Electrical source
On the ground

Concept render of the PowerIn.Space ground optical unit

Ground transmitter
Tracking and beam control

Optical power channel
Line of sight

Concept render of an airborne optical receiver mounted beneath a quadrotor

Onboard receiver
Power to the aircraft electrical load

Concept architecture, not to scale. Receiver integration with the aircraft power system must match the selected platform and mission.
  1. Transmit

    The ground unit converts electrical input into directed optical power.

  2. Track

    Ground-based tracking keeps the optical link aligned with the airborne receiver.

  3. Convert

    The onboard receiver converts incoming light into usable electrical power.

Application concepts

Where longer operation matters

01

Security & defence

Aerial observation for perimeter and asset protection.

02

Industrial & energy

Inspection and monitoring around industrial assets and infrastructure.

03

Remote sensors

Power delivery to fixed equipment where cabling or battery service is difficult.

See the application concepts

In-flight power, remote operations and mobile coverage, brought together in one short visualisation.

Visualisations of optical power delivery to a drone in flight, remote equipment and a drone supporting a moving convoy. Music only; no spoken dialogue. A text description of each scene is available in the Applications page's scene descriptions.

Application concepts

Choosing an energy approach

How does it compare with tethers, charging pads and battery swaps?

Tethered drones

External power through a physical cable.

Compare cable constraints with the aircraft movement your mission requires.

Charging pads

Recharging on the ground.

Check whether landing cycles fit the required coverage.

Battery swaps

Power restored through a battery change.

Check staffing, logistics and any handover between aircraft.

Laser power beaming

Energy delivered to a compatible receiver without a physical cable.

Evaluate line of sight, operating geometry, receiver integration and site-specific safety requirements.

Future applications

From terrestrial systems to space applications

Our longer-term research explores power delivery between spacecraft and to lunar assets beyond sunlight. The next questions are optical capture, pointing, thermal management and system mass.

  • Inter-satellite power
  • Lunar surface operations
  • Longer-horizon energy networks
Explore space applications
Concept of a solar-powered station on a lunar ridge directing an optical link to a rover in a crater
Concept illustration · Lunar surface power

Collaboration

Discuss an integration or partnership

Tell us about your platform, operating site and the task you need to keep running. Technical details are useful when available, but are not required to start the conversation.

  1. Architecture review

    Define the aircraft interface, power needs and operating geometry.

  2. Bench integration

    Review receiver mounting, electrical interfaces and control states.

  3. Controlled site validation

    Agree operating conditions, interlocks and the measurements required.