PPLN chips enable efficient nonlinear frequency mixing — including second‑harmonic generation (SHG), sum‑frequency generation (SFG), and various down‑conversion processes — across a wide spectral range from visible to mid‑infrared wavelengths.

PPLN chips enable efficient nonlinear frequency mixing — including second‑harmonic generation (SHG), sum‑frequency generation (SFG), and various down‑conversion processes — across a wide spectral range from visible to mid‑infrared wavelengths.