High-Speed Laser Communication Components & Terminals – 10 Gbps Space Optical Link Solutions

1. Overview

The laser communication component and terminal series is designed to meet the next generation of satellite communication demands. Using advanced opto-mechanical integration and near-infrared laser technology, these products enable high-speed, reliable data transmission for both inter-satellite and satellite-to-ground links.
Compared with traditional RF communication, laser communication provides significantly higher bandwidth, lower power consumption, and superior anti-interference performance. This makes the system ideal for large satellite constellations, Earth observation, deep-space exploration, and secure communications.
The product line includes high-precision optical assemblies, inter-satellite and satellite-to-ground laser terminals, and a comprehensive ground far-field test system, forming a complete end-to-end solution.

2. Key Products and Specifications

D100 mm Opto-Mechanical Assembly

• Clear Aperture: 100.5 mm

• Magnification: 14.82×

• Field of View: ±1.2 mrad

• Incident–Exit Optical Axis Angle: 90° (zero-field configuration)

• Exit Pupil Diameter: 6.78 mm

• Highlights:

  • High-precision optical design ensures excellent beam collimation and stability over long distances.

  • 90° optical-axis layout optimizes the optical path and reduces system volume.

  • Robust structure and premium materials deliver strong vibration resistance and thermal stability for in-orbit operation.

D60 mm Laser Communication Terminal

• Data Rate: 100 Mbps bidirectional @ 5,000 km

• Link Type: Inter-satellite

• Aperture: 60 mm

• Weight: approx. 7 kg

• Power Consumption: approx. 34 W

• Highlights: Compact, low-power design ideal for small satellite platforms while maintaining high link reliability.

Cross-Orbit Laser Communication Terminal

• Data Rate: 10 Gbps bidirectional @ 3,000 km

• Link Type: Inter-satellite and satellite-to-ground

• Aperture: 60 mm

• Weight: approx. 6 kg

• Highlights: Multi-Gbps high-speed link for massive data downlinks and inter-constellation networking; precision acquisition and tracking ensure stable connection even with high relative motion.

Co-Orbit Laser Communication Terminal

• Data Rate: 10 Mbps bidirectional @ 5,000 km

• Link Type: Inter-satellite and satellite-to-ground

• Aperture: 60 mm

• Weight: approx. 5 kg

• Highlights: Designed for communication within the same orbital plane, combining lightweight construction with low-power operation for constellation-scale deployments.

Satellite Laser Link Ground Far-Field Equivalent Test System

• Purpose: Simulates and verifies satellite laser link performance on the ground.

• Advantages:

  • Comprehensive link performance testing, including beam stability, link efficiency, and thermal behavior.

  • Reduces on-orbit risk and enhances mission reliability before launch.

3. Core Technologies and Advantages

• High-Speed, Large-Capacity Transmission: Supports bidirectional data rates up to 10 Gbps, enabling rapid downlink of high-resolution imaging and real-time scientific data.

• Lightweight, Low-Power Design: Terminal mass of only 5–7 kg and power consumption around 34 W, minimizing payload burden and extending mission life.

• High-Precision Pointing & Stability: ±1.2 mrad field of view and 90° optical-axis design deliver exceptional pointing accuracy and beam stability across thousands of kilometers.

• Multi-Link Compatibility: Seamlessly supports inter-satellite and satellite-to-ground communication, maximizing mission flexibility.

• Robust Ground Verification: The dedicated far-field test system ensures full-scale ground simulation and validation for high on-orbit reliability.

4. Application Fields

• Satellite Constellation Networking: Enables high-bandwidth inter-satellite data exchange, enhancing constellation coordination.

• Earth Observation & Remote Sensing: Rapid transmission of large-volume observation data to ground stations, dramatically shortening processing cycles.

• Deep-Space Exploration: Provides long-distance, high-speed communication for lunar, Martian, and other deep-space missions.

• Secure & Quantum Communication: Narrow-beam laser transmission offers natural resistance to eavesdropping, supporting quantum key distribution and other high-security applications.

Frequently Asked Questions (FAQ)

1. What is the main advantage of laser communication compared with traditional RF communication?

Laser communication offers far higher bandwidth, enabling data rates from hundreds of megabits to multiple gigabits per second.
Its narrow beam provides better security and resistance to electromagnetic interference, while requiring less power and a smaller aperture for the same link budget.

2. Which missions are best suited for these laser communication terminals?

The terminals are ideal for:

• Inter-satellite links within large constellations

• Satellite-to-ground high-volume data downlink

• Deep-space exploration (e.g., lunar or Martian missions)

• Secure or quantum-encrypted communication

3. What are the typical data rates and distances supported?

• Cross-Orbit Terminal: up to 10 Gbps bidirectional over 3,000 km

• D60 Terminal: 100 Mbps bidirectional over 5,000 km

• Co-Orbit Terminal: 10 Mbps bidirectional over 5,000 km