Witoptics Photonics Inc.

KTP (KTiOPO4) is a nonlinear optical crystal, which possesses excellent nonlinear and electro-optic properties. It has large nonlinear optical coefficients and wide angular bandwidth and small walk-off angle, etc.
Due to very high effective nonlinearity (deff ~8.3xd 36 (KDP)at 1.06μ m) and excellent optical properties. The phase matching range of KTP crystal lies in 0.99-3.3 μm region .This allows us to use KTP as an intracavity and extracavity frequency double for the most commonly used lasers, such as Nd:YAG, Nd:Glass and Nd:YLF .

Capabilities :
(1). Aperture:1x1 ~ 10x10mm
(2). Length: 0.05 ~ 20mm
(3). Phase Matching Angle: Determined by different homonic generartion, typical θ=90°; φ=23.5° for SHG 1064nm
(4). Phase matching type:Type II
(5).Typical Coating:
a) AR @1064nm R<0.1%; AR @ 532nm, R<0.25%.
b) HR @1064nm, R>99.8%; HT @808nm, T<0.5%
Different coating specification are available upon customer request.