Del Mar Photonics, Inc.
4119 Twilight Ridge
San Diego, CA 92130
tel: (858) 876-3133
fax: (858) 630-2376
Skype: delmarphotonics
sales@dmphotonics.com
Crystal Potassium Tltanyl Phosphate (KTP) is a nonlinear optical (NLO) material, characterized by high NLO coefficient, wide transparency, wide temperature synchronism width and moderate damage threshold. The single crystal of KTP is used for effective nonlinear transformation of laser radiation. It’s most popular application is for Second Harmonic Generation (SHG). The properties of KTP make it superior as an electrooptic modulator as well as an optical waveguide device, including phase modulators, amplitude modulators and directional couplers.
Physical Properties:| Chemical Formula | KTiOPO4 |
|---|---|
| Crystal Structure | Orthorhombic Space Group: Pna21 Point Group: mm2 |
| Lattice Parameters, Å | a = 12.814 |
| Melting Point, ° C | 1180 |
| Mohs Hardness | 5 |
| Density, g·cm-3 | 3.03 |
Thermal expansion coefficients at 100 °C, °C-1 |
a1 = 8.7 · 10-6 |
| Average refractive index | 1.8 |
|---|---|
| Transparency range, mm | 0.35 - 4.5 |
Temperature coefficients of refractive indices, °C T = 20 ° C |
anx = 2.2 · 10-6 any = 4 · 10-6 anz = 6.6 · 10-6 |
l, mm |
nx |
ny |
nx |
|---|---|---|---|
0.532 1.064 |
1.779 1.738 |
1.789 1.746 |
1.889 1.830 |
| Nonlinear coefficient, pmV-1 | 1.064 mm to 0.532 mm |
|---|---|
| d31, d32, d33, d24, d15, | 6.5, 5.0, 13.7, 7.6, 6.1 |
| SHG of Type II 1064 nm | deff = 7.4 pmV-1 |
| Phase-matching angles | 22° to x in xy plane |
| Conversion efficiency | 45 - 67% |
| Synchronism width: Temperature Spectral Angle |
|
| Walk-off | 1 mrad |
Optical damage threshold (pulse duration 10 ns) |
400 MW · cm-2 |
KTP crystals of (3 - 20) x (3 - 20) x (3 - 20) mm3 dimensions are available. Crystals with double narrow band anti-reflection coatings are available for high performance systems.
KTP crystal, 12x12x5 mm $960.00 |
KTP crystal, 10x10x6 mm $960.00 |
KTP crystal, 10x10x5 mm $820.00 |
KTP crystal, 8x8x8 mm $820.00 |
KTP crystal, 8x8x6 mm $610.00 |
KTP crystal, 8x8x5 mm $490.00 |
KTP crystal, 6x6x8 mm $490.00 |
KTP crystal, 7x7x5 mm $450.00 |
KTP crystal, 8x8x3.7 mm $330.00 |
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Del Mar Photonics, Inc. |