The NLO crystal, or nonlinear optical crystal, is primarily utilized for laser frequency conversion. Frequency conversion is the process utilized in laser applications to convert the laser wavelength range, these applications encompass frequency doubling or second harmonic generation (SHG), sum frequency generation (SFG), differential-frequency generation (DFG), and optical parametric generation (OPG), etc. OST Photonics functional crystal supplier provides a comprehensive selection of NLO crystals, encompassing KDP & DKDP, KTP, LiNbO3, LBO, BBO and BIBO crystals, etc.
Nonlinear optical crystals have extensive applications in different nonlinear parametric processes, including second harmonic generation, difference-frequency generation, and optical parametric amplification.
Angle tilting: Angle tilting is used to attain the phase-matching direction, thereby achieving optimal frequency conversion efficiency.
Crystal size and cutting angle: The dimension of NLO crystal is crucial as the length of the crystal plays a pivotal role in determining frequency conversion efficiency, and the crystal cost varies proportionally with size.
The cleanliness of nonlinear optic crystals is paramount. It is recommended to unpack NLO crystal packages in a sterile environment and take precautions against fingerprints, oil, and other substances adhering to the surface of the crystal.