Products

Satellite Payload

The products for QKD satellite payloads are characterized by their modularity. This allows the use of very different satellite platforms. The subsystems of the payload are compactly designed and have all common interface standards to the satellite bus.

A satellite payload contains the following major subsystems:

Satellite payload QSS1

The QSS1 satellite payload is represented by its compactness. The main subsystems and their parameters are listed in the table down below.
Name Number Size per unit/
mm³		 Mass per unit/ kg Parameter Specification
FPS 2 200x200x300 12 Repetition Rate
DV QKD
Wave lengh		 2 GHz or 5 GHz
BB84 protocol
850nm
QRNG 2 Integrated into FPS See FPS Data Rate 1 Gbit/s
MOSM 1 200x300x400 2 Memory capacity 4 TByte or 8 TByte
MMU 1 200x300x250 1 Processor TBC
LCT 1 See datacheet 15 Aperture
CPA elevation & azimut		 80mm
105°
320°
Satellite 1 TBC TBC Pointing accuracy
Rotation rate
Power average
Power nom.		 Better than 1°
Max. 0,2°/s
20W
120W

 

The QSS1 payload is currently under development. Delivery of the first flight models will take place from August 2026.

 

Satellite payload QSS2

EPS systems could be integrated in addition to the FPS. A pure BBM92 mission without FPS and MOSM would also be possible. The QSS2 payload is currently under development. Delivery of the first flight models will start in November 2026.
Name Number Size per unit/
mm³		 Mass per unit/ kg Parameter Specification
FPS 2 200x200x300 12 Repetition Rate
DV QKD
Wave lengh		 2 GHz or 5 GHz
BB84 protocol
850nm
QRNG 2 Integrated into FPS See FPS Data Rate 1 Gbit/s
MOSM 1 200x300x400 2 Memory capacity 4 TByte or 8 TByte
MMU 1 200x300x250 1 Processor TBC
LCT 1 See datacheet 15 Aperture
CPA elevation & azimut		 80mm
105°
320°
Satellite 1 TBC TBC Pointing accuracy
Rotation rate
Power average
Power nom.		 Better than 1°
Max. 0,2°/s
20W
120W

 

Faint Pulse Source Systems

MO-SPACE offers space qualified FPS systems. The systems are characterized by very high repeating rates, which guarantee high key rates.

The following modules are offered:

  • Faint Pulse Source M500

    • Repetition rate max. 500MHz

  • Faint Pulse Source G2

    • Repetition max. 2 GHz

  • Faint Pulse Source G5

    • Repetition max. 5 GHz

The systems are under development. Space qualification will be completed in early 2025.