Gold Coated Lithium Niobate Crystals For optical modulation and Q-switching Use
Lithium Niobate (LiNbO3) is a ferroelectric material suitable for a variety of applications. Its versatility is made possible by the excellent electro-optic, nonlinear, and piezoelectric properties of the intrinsic material. Applications that utilize the large electro-optic coefficients of lithium niobate are optical modulation and Q-switching of infrared wavelengths. Applications that use the large nonlinear d coefficient of LiNbO3 include optical parametric oscillation, difference frequency mixing to generate tunable infrared wavelengths, and second harmonic generation. Applications that use the piezoelectric property include ultrasonic transducer and SAW devices.
Diameter | 76.2±0.2mm | 100±0.2mm | 150±0.2mm | 200±0.2mm |
Primary Flat | 22±1mm | 32±1mm | 47.5mm, 57.5mm, Notch | 57.5mm, Notch |
Orientation | 36°Y, 42°Y, X-112°Y, Y, Z | |||
Thickness | 0.07mm~5.0mm | 0.1mm~5.0mm | 0.35mm~5.0mm | 0.35mm~5.0mm |
Surface finish | Single / Double side polish / Double side lapped | |||
TTV | < 1~5µm | |||
BOW | ± (20µm ~40um ) | |||
Warp | <= 20µm ~ 50µm | |||
LTV (5mmx5mm) | <1.5 um | |||
PLTV(<0.5um) | ≥98% (5mm*5mm) with 2mm edge excluded | |||
Polished side Ra | Roughness Ra<=5A | |||
Back Side Criteria | Roughness Ra:0.5-1.0µm, GC#1000 | |||
Scratch & Dig (S/D) | 20/10, 40/20, 60/40 | |||
Edge Profile | Compl't with SEMI M1.2@with GC800# .regular at C typed | |||
Cracks, saw marks, stains | None |
Growth method | Czochralski method |
Crystal structure | M3 |
Unit cell constant | a=b=5.148Å c=13.863 Å |
Melting point (℃) | 1250 |
Density(g/cm3) | 4.64 |
Hardness | 5 (Mohs) |
Refractive index | no=2.286 ne=2.203 at 632.8nm |
Nonlinear coefficient | d33=34.45, d31=d15=5.95, d22=13.07 (pmv-1) |
Denko coefficient | γ13=8.6, γ22=3.4, γ33=30.8, γ51=28.0, γ22=6.00 (pmv-1) |
Optical transmittance | 370 ~ 5000nm and >68% at 632.8nm |
Thermal expansion | a11=15.4×10^-6/K, a33=7.5×10^-6/K |
FAQs:
A: We look at ourselves as the piezo wafer specialist. We are the very first to work with Single Crystal Quartz in China about 30 years ago. Then gradually we step in the field of LiNbO3, LiTaO3, Quartz glass, LGS, CTGS etc. Especially, if you are looking for a piezo quartz supplier, we are the ultimate choice! We export millions of quartz blanks each year because we master the AT, SC and IT cuts with superior angle precision.
A: Yes, of course. We can fabricate as per your request. In addition, we are so experienced with piezo wafers that we can provide you relevant suggestions if you are not 100% sure about your choice. Besides, we do have some standard wafers in stock, please check with us.
A: Yes, we would suggest you go with the courier agent you are most familiar with (DHL, FedEX, UPS etc.). We can ship via your account. And, of course, we will pack the products safely in acceptable size to help you save the shipping cost. If you need us to take care of the freight, it’s also not a problem. We also have good discount with the international courier companies.
A: The wafer products are fragile and sometimes expensive. The last thing, as the manufacturer, we want to see is the products we make were damaged during courier. As a result, we will pack the wafers adequately and put them in a proper carton filled with buffer sponge. However, accidents are inevitable sometimes. So, please follow the “Acceptance check” steps shown in the drawings below. If the unwanted happened, we will either give the replenishment or refund if you follow the checking steps.
Acceptance Check