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Address: Room 1106, CIBC, No.198 Wuxing Rd, Hangzhou, P.R.China
Contact name:Xu
Hangzhou Freqcontrol Electronic Technology Ltd. |
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4 Inch LiNbO3 Crystal Piezoelectric Wafer Used As Frequency Doublers For Wavelength
A piezoelectric material is a crystal that has the ability to generate electricity when compressed or vibrated. Any crystal that has piezo effect is classified as piezoelectedric crystal. When electricity is applied to the crystal, an electrical dipole appears to form due to dipoles and movement, which results in the reverse piezoelectric effect.
Specially, we can make LARGE and THIN wafers/blanks. 3" 4" 6" 8" are all available as per requirement. In addition, we possess Corning Flatmaster 200 Profiler, Laser marking equipment, AOI and 6-step cleaning line.
Lithium Niobate (LiNbO3) crystal is widely used as frequency doublers for wavelength > 1mm and optical parametric oscillators (OPOs) pumped at 1064 nm as well as quasi-phase-matched (QPM) devices. Due to its large Electro-Optic (E-O) and Acousto-Optic (A-O) coefficients, LiNbO3 crystal is the most commonly used material for Pockel Cells, Q-switches and phase modulators, waveguide substrate, and surface acoustic wave (SAW) wafers, etc.
Material | Lithium Niobate | Lithium Tantalate | Quartz Crystal |
Diameter / Size | 3’’, 4’’, 6’’, 8’’ | 3’’, 4’’, 6’’ | 3’’, 4’’, 5’’, 6’’, 8’’ |
Cut Type | X / Y / Z 36Y / 64Y／128Y | X / Y-Z / X-112Y 28Y / 36Y / 42Y | X / Y / Z AT / ST / DT |
Surface Finish | Double side polish / Single side polish | ||
Thickness | 0.25mm / 0.35mm / 0.50mm / 1.00mm / 2.00mm | ||
TTV | < 5um | ||
PLTV | >98% (5mm*5mm) | ||
LTV | < 1.5um | ||
Bow | -25um < Bow < ＋25um | ||
Warp | < 30um | ||
Roughness | Ra<0.5nm, Ra<1nm | ||
Curie Temp. | 1142℃ ± 2℃ | 605℃ ± 2℃ | 573℃ |
Edge Profile | Round Ground, "C" Shape | ||
Flats | 22±2mm, 32.5±2mm, 47.5±2mm, 57.5±2mm, Notch As per request | ||
Dope with | Er, MgO | Fe | with or without seed |
Front Side | Roughness Ra<= 10A | ||
Back Side | Roughness Ra: 0.2--0.7um GC#1000, GC#2000 | ||
Appearance | No Cracks, saw marks, stains | ||
Single Domian | Completed Polarization / Reduced | No Stress | |
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
