Advantage:
Efficient frequency conversion(1064nm SHG conversion efficiency is about 80%)
Large nonlinear optical coefficients(15 times that of KDP)
Wide angular bandwidth and small walk-off angle
Broad temperature and spectral bandwidth
High thermal conductivity (2 times that of BNN crystal )
Moisture free
Minimum mismatch gradient
Super-polished optical surface
No decomposition below 900 deg; C
Mechanically stable
Low cost compare with BBO and LBO
Disadvantage:
Gray-tracking at high power limited it's application to moderate power density
Additional applications for KTP include mixed frequency, electro-optical modulation, optical parametric generation and optical waveguide.
Application:
Frequency Doubling (SHG) of ND-doped Lasers for Green/Red Output
Frequency Mixing (SFM) of ND Laser and Diode Laser for Blue Output
Parametric Sources (OPG, OPA and OPO) for 0.6mm-4.5mm Tunable Output
Electrical Optical(E-O) Modulators, Optical Switches, and Directional Couplers
Optical Waveguides for Integrated NLO and E-O Devices