Table 1 Comparison of RF photonic filters based on multiwavelength sources.

Ref. ²²

Mode-locked laser

N

20.4 dB

0.6–1.8 GHz

N/A

N/A

N

Ref. ²¹

Mode-locked laser

N

24 dB

8–16 GHz

N/A

N/A

N

Ref. ⁷

Laser array

N

10 dB

0–50 GHz

N/A

N/A

Dispersive delay line

Ref. ¹⁹

EO comb, four modulators

N

28.2 dB/61 dB w/wo nonlinear shaping

0.8–10.4 GHz

−40 dB

N/A

N

Ref. ²⁰

FP-EO comb, one modulator

Y, one

30 dB

2.6–13.9 GHz

N/A

N/A

N

Ref. ⁴³

EO comb, four modulators

Y, one

32 dB

2–8 GHz

0 dB

24 dB

N

Ref. ⁸

EO comb, seven modulators

Y, two

35 dB

0.6–4 GHz

−3 dB

N/A

Spectral shaper

Ref. ¹⁵

Microcomb

Y, two

25 dB

2.5–17.5 GHz

N/A

N/A

Microresonator

Ref. ¹⁶

Microcomb

Y, two

48.9 dB

1.4–11.5 GHz

N/A

N/A

Microresonator

Ref. ¹⁷

Microcomb

Y, two

N/A

3.2–19.4 GHz

N/A

N/A

Microresonator

This work

Microcomb

N

25.6 dB

0.8–16.2 GHz

1.6 dB

29.8 dB

Microresonator