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Table 3 SPEQS-CS specifications (GomX-2 version) and design envelopes for upcoming devices

From: Nanosatellite experiments to enable future space-based QKD missions

 

SPEQS-CS [31]

SPEQS - 1

SPEQS - 2

Brightness

3,000

3,000

1,000,000

Visibility

96%

96%

96%

Efficiency

1%

1%

20%

Power (peak)

2.5 W

2.5 W

10 W

Mass

0.3 kg

0.8 kg

1 kg

Volume

0.25U

0.5U

0.8U

  1. Brightness refers to the number of detected photon pairs per second per milliwatt. Visibility is a measure of the quality of the photon pairs produced and efficiency refers to percentage of coincident pairs to single photons detected.