Extended Data Fig. 3: Gain measurements at various on-chip input powers.
From: Low-power integrated optical amplification through second-harmonic resonance
(a) Phase-insensitive gain from OPA and corresponding FH pump depletion from SHG for nondegenerate signal wavelength 1590 nm and on-chip FH pump powers 38 mW and 194 mW. (b) Phase-sensitive gain from OPA and corresponding FH pump depletion from SHG for degenerate signal wavelengths for on-chip pump powers of 15 mW and 65 mW.
