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The Stellar Project LaserCube is a 2-way laser communication terminal enabling downlink and intersatellite link through optical channels for small satellites.

The optical communication solutions are designed to have higher performance than the state-of-the-art radiofrequency solutions and do not have any regulatory restrictions or licensing issues.

LaserCube is designed to act as a crucial building block of future assets of commercial space and has an enhanced security as laser links cannot be intercept/jammed.


  • Earth Imagery
  • Weather forecasting
  • Global telecommunications internet services
  • Internet of things (IoT)
  • Machine-to-machine (M2M)

Key features

  • 2U CubeSat size (100x100x200 mm^3, 2kg)
    • Suitable for 3U CubeSats and microsatellites
  • Two configurations:
    • Intersatellite link (up to two full duplex optical channels)
    • Downlink (1 TX optical channel)
  • Dedicated coarse pointing system with ± 10 deg elevation/azimuth pointing range and 10 μrad pointing accuracy (patent by Stellar Project):
    • Precise pointing of optical unit by ADCS is not required
    • Opertaional flexibilty for the platform
  • Telecom performance: >10 times state of the art RF technologies (1-2 Gbps downlink)
  • Enhanced security: laser links immune to interception or jamming
  • No regulation restrictions for frequency bands allocation


Product customization available from idea to orbit.

Flight heritage

The system has achieved flight heritage with LaserCube-Downlink launched in space for its maiden flight on June 30th, 2021.

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Last updated: 2021-12-23



2 kg
100 mm
100 mm
200 mm


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