OISLComm | Télécommunications Laser Inter-Satellites et Photonique Spatiale

OISLComm standardise les liaisons laser inter-satellites (OISL): interconnexions de 100 Gbps à 1 Tbps avec transcepteurs cohérents 1550nm et pointage sub-microradian.

OISLComm 100 Gbps Coherent Intersatellite Optical Crosslink

Sub-micro-radian acquisition, tracking, and pointing (ATP) pipeline between orbital planes

Central System: 1550nm DFB Seed Laser - Radiation-hardened EDFA booster (+33 dBm)

Network Nodes

1550nm DFB Seed Laser
Fast Steering Mirror (FSM)
Coherent Optical DSP
Orbital Ephemeris Pointing

Architectural Protocol Layers

Spaceborne PHY/MAC Layer (3GPP Rel-17 TS 38.300): Doppler compensation, HARQ disabling, and timing advance extension.
Orbital Mesh Routing (CCSDS / Delay-Tolerant Networking): Dynamic topology routing over intermittent laser crosslinks.
Regenerative Core Processing (OpenRAN / 3GPP CU-DU Split): Onboard user plane function (UPF) local breakout.

Key Metrics: < 18ms (LEO Orbit-to-Ground Roundtrip) | 100 Gbps (Optical Crosslink Throughput) | ±48 kHz (Doppler Shift Compensation) | 99.999% (Orbital Constellation Availability)

Liaisons Optiques Inter-Satellites (OISL), Télécoms Laser Cohérentes 1550nm

Core Engineering Areas