• Introduction:

KTP crystal is mostly used as nonlinear crystals for frequency doubling of solid-state Nd:YAG crystal or Nd:YVO₄ crystal laser, as it has large nonlinear optical coefficients, wide angular bandwidth and small walk-off angle, broad temperature and spectral bandwidth. KTP crystal also has a high electro-optic(E-O) coefficient and low dielectric constant, and large figure of merit, these features make it also widely used in electro-optic applications.

• Optical Properties：

1) Large nonlinear optical (NLO) coefficients

2) Wide angular bandwidth and small walk-off angle

3) Broad temperature and spectral bandwidths

4) High electro-optic (E-O) coefficient and low dielectric constant

5) Large figure of merit for an optical waveguide modulator

6) Non-hygroscopic, good chemical and mechanical properties

• Applications：

1) Frequency doubling (SHG) of Nd-doped lasers for green/red output

2) Frequency mixing (SFM) of Nd lasers and diode lasers for blue output

3) Parametric sources (OPG, OPA and OPO) for 0.6mm-4.5mm tunable output

4) E-O modulators, optical switches, directional couplers

• Shenhua offers KTP specifications：