KTP crystals is the most commonly used material for frequency doubling of Nd-doped lasers, particularly at the low or medium power density.It is widely used for
frequency mixing to generate Red/Green/Blue output, and for OPO and OPA to generate visible to mid-infrared tunable output. It is also used for many E-O devices such as Q-switches and E-O modulators.
Advantages:
- Large nonlinear optical coefficient
- Wide angular bandwidth and small walk-off angle
- Broad temperature and spectral bandwidth
- High Electro-Optics(E-O) coefficient and low dielectric constant
- Non-hygroscopic, chemically and mechanically stable
Application:
- Frequency Doubling (SHG) of Nd-doped Lasers for Green/Red Output (1064~532nm)
- Frequency Mixing (SFM) of Nd Laser and Diode Laser for Blue Output
- Parametric Sources (OPG, OPA and OPO) for 600nm – 4500nm Tunable Ouptut
- E-O Modulators, Optical Switches, Directional Couplers
- Optical Waveguides for Integrated NLO and E-O Devices
Specifications:
| Angle Tolerance | <+/-0.25deg |
| Dimension Tolerances | +/-0.1 mm |
| Surface Quality | 10/5 Scratch/Dig |
| Parallelism | <10″ |
| Perpendicularity | <5′ |
| Clear Aperture | >90% |
| Wavefront Distortion | <λ/8@632.8 nm |
| Surface Flatness | <λ/8@632.8 nm |
| Chamfer | <0.1mm@45deg |
| Coating | AR/HR coating Upon customer’s request |
| Damage Threshold | 750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz |