Laser Communication Terminals
Complete optical assemblies are self-contained optical instruments designed to deliver a defined optical function as an integrated unit.
Space-Qualified Optical Communication for LEO Missions
Astravon develops laser communication terminals for demanding LEO missions, combining precision optics, accurate pointing, thermal stability, and space-qualified optomechanical engineering.
Built on extensive experience in space telescopes, aerospace optical systems, and precision optomechanics, our terminal platforms are designed to support reliable inter-satellite and satellite-to-ground optical communication
Terminal Portfolio
|
Architecture |
Best Fit |
TRL |
Key Advantage |
|
Compact Terminal |
Smallsats and constellations |
8–9 |
Compact SWaP and autonomous fine tracking |
|
High-Stability Terminal |
Operational LEO links |
8–9 |
Thermal and pointing stability |
|
Wide-Range Terminal |
Advanced inter-satellite links |
6–8 |
Wide pointing range and mission flexibility |
TRL may vary by configuration and mission-specific implementation.
Compact Terminal
The Compact Terminal is designed for micro- and nanosatellites where size, weight, power, and integration simplicity are critical.
The spacecraft provides coarse pointing, while the terminal performs autonomous fine tracking to acquire and maintain the optical link.
The architecture supports both inter-satellite and satellite-to-ground communication in LEO.
Mission: Smallsats, nanosatellites, and constellations
Link types: Inter-satellite and satellite-to-ground
Pointing architecture: Spacecraft coarse pointing with terminal-level fine tracking
Flight status: On-orbit validated
Primary advantage: Compact SWaP with autonomous fine tracking
Key specifications:
[Mass] < 5 kg
[Dimensions] ~ 10 x 10 x 10 cm (1U)
[Power consumption] < 20 W[Data rate] 1 - 10 Gbps
[Pointing accuracy / tracking performance] Pointing Accuracy: ~1.2°
High-Stability Terminal
Flight-Validated Stability for Operational LEO Links
The High-Stability Terminal is optimised for stable, long-duration inter-satellite optical communication.
Its thermally isolated optical antenna and separated architecture are designed to reduce thermally induced alignment changes, improve pointing stability, and simplify spacecraft integration.
This architecture is well suited to operational LEO missions where sustained link stability and repeatable performance are critical.
Mission: Operational LEO communication systems
Link types: Same-orbit inter-satellite links
Architecture: Thermally isolated optical antenna with separated terminal architecture
Flight status: On-orbit validated; four flight units deployed
Primary advantage: Thermal isolation and stable optical communication
Key specifications:
[Mass] 10 - 20 kg
[Dimensions] ~ 20 x 20 x 25 cm
[Power consumption] 50 - 80 W
[Data rate] 10 - 100 Gbps
[Thermal stability / pointing stability] Thermal and Pointing Stability Are Critical to System Performance
Wide-Range Terminal
Wide Pointing Range for Advanced Inter-Satellite Missions
The Wide-Range Terminal uses an inverted periscope architecture to provide a wide pointing range while maintaining a compact terminal form factor.
The architecture is designed to support both same-orbit and cross-orbit optical communication in LEO, providing greater flexibility for missions with demanding link geometries.
Mission: Advanced inter-satellite communication
Link types: Same-orbit and cross-orbit links
Architecture: Inverted periscope optical architecture
Development status: TRL 6–8; approaching deployment
Primary advantage: Wide pointing range and flexible link geometry
Key specifications:
[Mass] 15 - 30 kg
[Dimensions] ~ 25 x 25 x 30 cm
[Power consumption] 80 - 120 W
[Pointing range] 10 - 100 Gbps
[Data rate] Pointing Range Is a Critical System Parameter
Engineering the Optical Link
Laser communication performance is shaped by more than the optical payload alone. Link reliability depends on how the terminal manages beam formation, line-of-sight control, structural behaviour, and changing orbital conditions as one integrated system.
Preserving the Beam
Efficient optical communication starts with maintaining beam quality from the source through the transmit and receive optics.
Optical design, surface quality, alignment, and assembly tolerances all influence how effectively optical power is delivered across the link.
Holding the Line of Sight
A high-performance optical terminal must acquire its target quickly and maintain alignment as spacecraft geometry changes.
Coarse spacecraft pointing and terminal-level fine steering are coordinated to keep the optical axis within the required pointing envelope throughout the link.
Maintaining Alignment in Orbit
Mechanical and thermal behavior can shift the optical path even when individual components remain within specification.
Astravon designs optical and structural elements together to control alignment changes across launch loads, orbital temperature cycles, and operational conditions.
Why Astravon
Optical Systems Designed for Space
Astravon's background extends beyond communication terminals to precision optical systems developed for demanding aerospace environments.
That experience informs how we approach optical tolerancing, structural stability, alignment, and environmental performance from the earliest stages of terminal design.
Proven Hardware, Evolving Platforms
Our Compact and High-Stability terminal platforms have been validated in orbit, providing a practical foundation for continued development and mission-specific adaptation.
Rather than beginning with a purely conceptual architecture, new programs can be built from hardware and design approaches that have already progressed through flight implementation.
Different Missions Require Different Architectures
Spacecraft size, pointing capability, link geometry, thermal environment, and operational concept can lead to very different terminal requirements.
Astravon's portfolio is built around multiple architectures so that the optical terminal can be matched to the mission rather than forcing a single design into every application.
From Optical Design to Flight Hardware
Performance depends on decisions made throughout the full development chain.
By connecting optical engineering, precision manufacturing, alignment, optomechanical integration, qualification, and production, Astravon can manage critical interfaces from initial design through flight hardware.
Engineering Capabilities
- Optical system design and fabrication
- Precision alignment and integration
- Thermally stable and isolated optical assemblies
- Terminal-level environmental qualification
- Spacecraft integration support
- Scalable production for constellation programs
Built for Demanding Missions
Astravon supports system engineers, payload architects, satellite primes, and commercial space teams developing optical communication systems for LEO.
Whether your mission requires an ultra-compact smallsat terminal, a highly stable operational communication system, or a wide-range architecture for advanced inter-satellite links, our portfolio provides a practical path from mission requirements to flight hardware.
Evaluate a Terminal for Your Mission
Share your orbit, link geometry, spacecraft SWaP constraints, pointing requirements, and target performance with our engineering team.
We can help identify the terminal architecture best suited to your mission.
Performance is defined through optical budgets, traceable metrology and verification planning suited to your specific mission requirements appropriate to your specific mission needs.