Nonlinear Crystals

Nonlinear optical (NLO) crystals are advanced photonic materials that respond nonlinearly to intense laser light, enabling frequency conversion, electro-optic modulation, and quantum optics applications. Their unique ability to alter the wavelength, phase, or amplitude of light makes them essential in modern laser systems.
The most common use is frequency conversion—transforming infrared lasers into visible or ultraviolet light via second harmonic generation (SHG), or achieving widely tunable output through optical parametric oscillation (OPO). Key crystals like BBO, LBO, KTP, and KDP are widely employed, each offering distinct advantages in damage threshold, transparency range, and efficiency.
NLO crystals also enable electro-optic switching for pulsed lasers, and spontaneous parametric down-conversion (SPDC) for generating entangled photon pairs in quantum communication. In advanced imaging, crystals such as PPLN support terahertz generation and nonlinear microscopy.
From industrial laser processing and medical surgery to scientific research and defense, NLO crystals are indispensable for pushing the boundaries of photonics. Our product range offers high-quality, precision-polished crystals tailored to diverse application needs.