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Copyright©2018 Crystech. All Rights Reserved Technical Powered by www.300.cn 鲁ICP备10008012号-1
Product description
Through years of research and development, CRYSTECH has achieved great advances in growing techniques of RTP crystals. We are able to provide excellent RTP crystals both in matched pairs or single crystals.
APPLICATION:
● Q-switch (Laser Ranging, Laser Radar, medical laser, Industrial Laser)
● Laser power/phase modulation
● Pulse Picker
ADVANTAGE:
● An excellent crystal for Electro Optical applications at high repetition rate
● Large nonlinear optical and electro-optical coefficients
● Low half-wave voltage
● No Piezoelectric Ringing
● high damage threshold;
● High Extinction Ratio
● Non-hygroscopic
| Dimension Tolerance | W(+/-0.1) * H(+/-0.1) * L(+0.5/-0.1) mm | ||
| Angle Tolerance | +/-0.15° | Perpendicularity | ≤10′ |
| Scratch / Dig | 20/10 | Chamfer | ≤0.2mmx45° |
| Parallelism | ≤5″ | Chip | ≤0.1mm |
| Flatness | λ/10@633nm | CA | ≥90% |
| TWD | λ/6@633nm | Electrode | Ti or Au |
| Extinction Ratio | >20dB | ||
| Coating | AR@1064nm(R<0.2%), or customized upon request | ||
| Damage Threshold | 600MW/cm² 10ns 10Hz at 1064nm | ||
Physical and Optical Properties
| Crystal structure | Orthorhombic |
| Cell Parameters | a = 12.96 Å; b =10.56 Å; c =6.49 Å |
| Mohs hardness | 5 |
| Density, g/cm3 | 3.6 |
| Melting Point: | ~ 1000˚C |
| Ferroeletric transition temp. | ~ 810°C |
| Color | Colorless |
| Thermal Expansion Coefficients (/K) | αx=1.01x10-5, αy =1.37x10-5, αz =-4.17x10-6 |
| Dielectric Constant | Eeff= 13.0 |
| Thermo-optical coefficients (dλ/dT) | -0.029 nm / °C |
| Electro-optic constants | Y-cut: r51=38.5 pm/V X-cut: r33=35 pm/V,r23=12.5 pm/V, r13=10.6 pm/V |
| Nonlinear Coefficients: | d15 = 2.0 pm/V; d24 = 3.6 pm/V; d31= 2.0 pm/V d32 = 3.6 pm/V; d33 = 8.3 pm/V |
| Electrical Resistivity | around 1011-1012ohm·cm |
| Hygroscopic | no |
| Static Half Wave Voltage at 1064 nm | 4x4x20 mm: 1,600 V 6x6x20 mm: 2,400 V |
| Transmitting range: | 350~4500 nm |
| Sellmeier equations(λ in um) |
nx2=2.15559 + 0.93307[1-(0.20994/λ)2] - 0.01452λ2 ny2=2.38494 + 0.73603[1-(0.23891/λ)2] - 0.01583 λ2 nz2=2.27723 + 1.11030[1-(0.23454/λ)2] - 0.01995λ2 |