The rapidly growing field of space-to-ground laser communication offers high throughput and secure data transfer without frequency allocation. Cailabs' TILBA-ATMO, leveraging Multi-Plane Light Conversion (MPLC) technology, provides turbulence mitigation for atmospheric communication. The 8-mode version showed promise at 100 Gbps, but for Optical Ground Stations (OGS) with large telescopes, a 45-mode system is required. Our latest research demonstrates the 45-mode TILBA-ATMO effectively achieves 10 Gbps data rates, meeting OGS requirements for Low-Earth Orbit (LEO) satellite signals at high Greenwood frequency and large D/r0.
Space-to-ground laser communication is booming thanks to high throughput, stealth communication without frequency allocation. However, lasercom becomes really competitive beyond 10 Gbps. At this rate, fiber components, requiring SMF coupling, and thus turbulence mitigation become necessary.
Based on Cailabs' core technology, Multi-Plane Light Conversion (MPLC) followed by photonic integrated chip, Cailabs develops a turbulence mitigation product entirely dedicated to lasercom. Previous work showed proof of concept for the 8-mode version. In this article we investigate last results obtained with the system including 100 Gbps communication and present the new 45-modes turbulence mitigation version.
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