Table 1 Comparison between our Results and state-of-the-art for high-speed quantum random number generator based on Laser Phase Noise

Ref.³³

Single laser (CW^a)

1 GHz

6 Gbps (off-line)

Yes

No

Yes

Ref.³⁵

Single laser (GS^b)

GS at 5.8 GHz

43 Gbps (off-line)

No

Yes

Yes

Ref.⁴²

Single laser (GS)

GS at 2.5 GHz

10 Gbps (off-line)

No

Yes

Yes

Ref.⁴⁰

Dual lasers (CW + GS)

GS at 100 MHz

>1 Gbps (off-line)

No

Yes

No

Ref.⁴³

Dual lasers (GS + GS)

GS at 1 GHz

8 Gbps (real-time)

No

Yes

No

Ref.³⁸

Dual lasers (CW + GS)

GS at 500 MHz

2 Gbps (off-line)

No

Yes

No

Dual lasers (CW + CW)

–

80 Mbps (off-line)

No

No

No

This work

Dual lasers (CW+CW)

20 GHz (digital filtering)

156 Gbps (off-line)

No

No

No

1.5 GHz (analog filtering)

10 Gbps (real-time)