| Growth Orientation | Along Y-axis | Maximum Length(at 5x5mm) | 25mm |
| Length Tolerance | +0.5mm / -0.1mm | Width and Height Tolerance | +/-0.1mm |
| Parallelism | < 30″ | Perpendicularity | < 15′ |
| Surface Quality | 20/10 S/D | Coating | AR-coated |
Basic Properties:
| Crystal structure | Orthorhombic | Cell Parameters | a = 12.96 Å; b =10.56 Å; c =6.49 Å |
| Mohs hardness | About 5 | Density | 3.6 g/cm3 |
| Melting Point | About 1000˚C | Thermal Expansion Coefficients (/K) | αx=1.01x10-5 , αy =1.37x10-5 , αz =-4..17x10-6 |
| Sellmeier Equations (λ in μm) |
nx2=2.15559+0.93307[1-(0.20994/λ)2]-0.01452λ2 ny2=2.38494+0.73603[1-(0.23891/λ)2]-0.01583λ2 nz2=2.27723+1.11030[1-(0.23454/λ)2]-0.01995λ2 |
Thermo-optical Coefficients (dλ/dT) | -0.029nm / °C |
| Electro-optic Constants (Y-cut) (X-cut) |
r33=38.5 pm/V r33=35 pm/V,r23=12.5pm/V, r13=10.6 pm/V |
Electrical Resistivity | About 1011-1012ohm·cm |
| Static Half Wave Voltage at 1064nm |
4x4x20mm:1.600V 6x6x20mm:2.400V 9x9x20mm: 3.600 V |
Extinction Ratio | >20dB@633nm |
RTP (Rubidium Titanyle Phosphate – RbTiOPO4) Crystals are an isomorph of KTP crystals and find great utility in nonlinear and electro-optical applications. It has the advantages of a higher damage threshold(about 1.8 times the magnitude of that of KTP), high resistivity, low absorption loss, non-hygroscopicity, and the absence of induced piezo-electric ringing with the frequencies of electrical input signals up to 60 kHz. Its transmission range is 350nm to 4500nm. The walk-off angle of the crystal, when generating yellow lasers, is miniature, in addition, the crystal is a highly efficient media for lasers of high repetition rates.
Shanghai North Optics offers custom RTP crystals upon customers' request. AR coatings can be furnished. Besides, our RTP Q-Switches have been released for sale, click on the bold text to learn more.
Applications of RTP Crystals:
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