Extended Data Fig. 1: Anneal-free microresonator characterization.
From: Towards fibre-like loss for photonic integration from violet to near-infrared
Resonator transmission spectra and corresponding intrinsic Q factors (Q0) of anneal-free Ge-silica microring resonators at 7 wavelengths, which are 50M at 458 nm, 74M at 532 nm, 104M at 685 nm, 178M at 780 nm, 195M at 980 nm, 194M at 1064 nm, and 173M at 1550 nm, respectively. Corresponding waveguide loss of 1.76 dB/m at 458 nm, 1.02 dB/m at 532 nm, 0.56 dB/m at 685 nm, 0.29 dB/m at 780 nm, 0.21 dB/m at 980 nm, 0.19 dB/m at 1064 nm, 0.15 dB/m at 1550 nm.
