Table 1. System configuration parameters

Parameter Symbol Value
Receiver (telescope) Telescope aperture (radius) D(R) 1 m (0.5 m)
Focal length f 1.5 m
Tracking & pointing accuracy ~1 arcsec
Detector (photodiode) Detector radius a 37.5 μm
Responsivity RD 1 A/W
Sampling frequency fs ≤ 150 kHz
Tip/tilt mirror Closed-loop bandwidth fc ≤ 850 Hz
Transmitter (satellite) Communication signal wavelength λ 1,550 nm
Satellite altitude H 300 km