18. November 2025
Admin
China Tests 2-Watt Laser From Geostationary Satellite, Claims 5× Starlink Speed
Chinese scientists have demonstrated a groundbreaking laser communication test from a satellite in geostationary orbit — using just a 2-watt laser to transmit data at **1 Gbps**, reportedly about five times faster than typical Starlink speeds.
Quick Insight:
This experiment could reshape how we think about satellite internet: instead of large LEO constellations, high-orbit optical links could deliver high-speed data using very low power.
1. How the Technology Works
• The test relied on adaptive optics (AO) to compensate for atmospheric distortion.
• Mode-diversity reception (MDR) helped capture the scattered laser signal more reliably.
• The system splits the incoming signal into multiple optical channels to maximize coherence and preserve data integrity.
2. What This Means for Satellite Internet
• Laser-powered systems could offer high bandwidth without needing huge numbers of satellites.
• Because the beam is very narrow and efficient, less power is required compared to traditional radio-frequency links.
• The long-distance (GEO) link could reduce dependency on LEO constellations, potentially lowering costs and complexity.
3. Strategic & Commercial Implications
• For China: this underscores a move to compete in global satellite internet infrastructure with more efficient, long-range systems.
• For global players: laser-based GEO communication could be a competitive threat to existing LEO networks.
• For Nigerian and African tech ecosystems: companies building satellite-internet solutions might need to watch this trend, as future infrastructure could pivot toward optical links.
Final Thoughts
This isn’t just a lab test — it could be a signal of the next phase in satellite internet. For students, innovators and tech leaders: as space-internet infrastructure evolves, optical communication will likely play a big role. Preparing for it now could give you an edge in future space-tech and connectivity efforts.
Tip: Follow developments in optical satellite communication — learn about adaptive optics, mode-diversity reception and how they could change terrestrial and space-based internet forever.
