Extended Data Table 1 Parameters of the devices

From: High-efficiency and broadband on-chip electro-optic frequency comb generators

Parameters

Values

Waveguide-cavity 1 coupling κe1

2π×1.37 GHz

Intrinsic loss rateκi1

2π×152 MHz

Intrinsic quality factor Qi1

1.2×106

Waveguide-cavity 2 coupling κe2

2π × 85 MHz

Intrinsic loss rate κi1

2π × 137 MHz

Intrinsic quality factor Qi2

1.4×106

Cavity 1-cavity 2 coupling μ.

2π × 1.47 GHz

Mode-coupling rate Ω

2π × 7.40 GHz

Modulation index β

0.48π