專業KTP crystals廠商

Potassium titanyl phosphate (KTiOPO4, KTP) crystals are advantageous due to their high nonlinearity, great mechanical stability, high optical quality, and transparency range of 350 nm - 4,5 µm. These features determine the wide application of KTP crystals as a nonlinear medium. It is an excellent solution for frequency doubling applications of Nd-doped lasers, especially for low and medium power applications, both intra- and extra-cavity design. Besides, these crystals can be used as a nonlinear OPO medium for IR generation up to 4 µm and used as a pump source for mid-IR nonlinear crystal-based optical parametric oscillators, such as ZGP OPO. KTP is susceptible to photochromic damage (grey-tracking), which causes the deterioration of nonlinear conversion efficiency. 4Lasers provide high grey track resistance (HGTR) KTP crystals as a solution, which significantly improves the grey-track resistance and overall performance. HGTR KTP crystals extend the use of KTP as a nonlinear medium to high-power applications.

Main features

• High nonlinearity
• Nonhygroscopic crystal
• Great mechanical stability
• Wide transparency range from 350 nm to 4,5 µm
• Broad angular and thermal acceptance
• Broad type I and II non-critical phase-matching range

Application examples

• Low and medium power frequency doubling of Nd-doped lasers
• KTP OPO and ZGP OPO tandem for mid-infrared generation

Physical and optical properties

KTP crystals