Quartus has designed and built ground and space-based laser communication terminals, including: gimble mechanics for tracking and pointing; atmospheric modeling and implementation of fast steering mirrors and adaptive optics; telescopes; and optical heads.
GROUND AND SPACE TERMINALS
Complete Station Development
Telescopes, uplink & downlink channels
Mount model, controls, and automation
Adaptive optic solutions
LEO Optical Head Development
Optical and opto-mechanics
Beam expansion telescopes
Space rated athermalized fiber collimator
Assembly, integration, and test
Impacts from atmosphere
Space Mechanisms Design
Coarse pointing assemblies
Launch / lock mechanisms
Custom gimbal designs
Example of a phase screen cross section of the atmosphere used to model atmospheric transmission
Snapshots of beam the irradiance profile propagating from the satellite to ground receiver through atmosphere
Atmospheric Propagation Modeling
Quartus has delivered and commissioned a complete ground terminal and low earth orbit optical head for free space laser communication.
Quartus was heavily involved in requirements definition and systems engineering, including the optical link budget.
In order to determine if atmospheric effects could be sufficiently corrected by incorporated adaptive optics, Quartus performed atmospheric modeling using internally developed wave propagation tools, MODTRAN, and HELEEOS.
Snapshots of the laser point spread function on the focal plane array over time