Hangzhou Freqcontrol Electronic Technology Ltd.
                                                                                                           
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27 Years
Since 1999
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Fe-Doped LiTaO3 Wafers 3-inch 4-inch 6-inch for Electro-Optic Devices with 2 MW/cm² Damage Threshold

Price Negotiable
Price: Negotiable
MOQ: 5 pcs
Delivery Time: 1-4 weeks
Brand: BonTek
Product Description
Iron-Doped Lithium Tantalate (Fe:LiTaO3) Wafers
Lithium Tantalate (LiTaO3) is a premium electro-optic crystal widely used in E-O devices due to its excellent nonlinear optical properties, high electro-optic coefficients, and superior damage threshold. BonTek supplies high-quality Fe-doped LiTaO3 wafers in standard diameters of 3-inch, 4-inch, and 6-inch, with custom specifications available upon request.
Product Images
Iron-doped Lithium Tantalate wafer sample Close-up view of LiTaO3 wafer surface Lithium Tantalate wafer packaging and handling
Standard Wafer Specifications
Parameter3-inch (76.2mm)4-inch (100mm)6-inch (150mm)
S/D20/1020/1020/10
TTV<3μm<3μm<5μm
PLTV>95%>95%>95%
Warp<20μm<40μm<50μm
BOW<20μm<30μm<30μm
Ra<0.5nm<0.5nm<0.5nm
ReductionStandard White
Black Reduced
Standard White
Black Reduced
Standard White
Black Reduced
DopeFe doped
Yellow Black
Fe doped
Yellow Black
Fe doped
Yellow Black
Material Properties
PropertyLiTaO3 Value
Type of MaterialSingle Crystal
Crystal StructureTrigonal, a = 5.154, c = 13.784Å
Melting Point1650℃
Curie Temperature607℃
Transmission Range400 - 5000 nm
Absorption edge270nm
Absorption loss< 0.15 %/cm @ 1064 nm
Refractive Indexno=2.176, ne=2.180 (at 0.633 µm)
no=2.131, ne=2.134 (at 1.2 µm)
Density7.45g/cm³
Thermal Conductivity8.78×10⁻⁷ m²/sec
Optical homogeneity~10⁻⁵
Hardness (Mohs)5
Elastic CoefficientCE11 2.33 (×10¹¹ N/m²)
CE33 2.77 (×10¹¹ N/m²)
Dielectric Constantε11/ε0 52.7
ε33/ε0 44.5
Solubility in WaterInsoluble in water
NLO Coefficientsd33 = 13.8 pm/V
d22 = 2.4 pm/V
d11 = 0.85 pm/V
Electro-Optic Coefficientsr31 = 8.4 pm/V @633nm
r22 = 20 pm/V @633nm
r33 = 30.5 pm/V @633nm
Damage Threshold2 MW/cm² @532nm
LiTaO3 crystal structure and optical properties Electro-optic device applications using LiTaO3 wafers
Frequently Asked Questions
What are the products you mainly work on?
We are piezoelectric wafer specialists with over 30 years of experience. We were the first to work with Single Crystal Quartz in China and have expanded to LiNbO3, LiTaO3, Quartz glass, LGS, and CTGS materials. We are particularly recognized for our expertise in quartz blanks, exporting millions annually with superior angle precision in AT, SC, and IT cuts.
Can you accept product customization?
Yes, we can fabricate wafers according to your specific requirements. Our extensive experience allows us to provide valuable technical suggestions if you're uncertain about specifications. We also maintain standard wafer inventory for immediate availability.
Can you deliver the goods via our courier agent?
We can ship using your preferred courier service (DHL, FedEx, UPS, etc.) via your account. We optimize packaging to minimize shipping costs while ensuring product safety. Alternatively, we can handle freight arrangements using our established relationships with international carriers.
How can you guarantee we get what we want safely?
We employ comprehensive protective packaging with buffer sponge and proper cartoning to prevent damage during transit. In the rare event of shipping damage, we provide replacements or refunds when customers follow our documented acceptance checking procedures.
Can we visit your factory?
Factory inspections are welcome and encouraged for large quantity purchases and long-term partnerships. We have hosted numerous global clients and currently offer videoconferencing options for remote evaluations.
Acceptance Check Procedure
Step-by-step acceptance check procedure for wafer products
  • Handle products with care upon receipt and inspect outer carton condition
  • Carefully open outer packaging and check alignment of internal boxes
  • Document packaging condition with photographs before removing products
  • Open vacuum packaging only in clean room environments during application
  • If damage is detected, photograph/video immediately without removing from packaging and contact us for resolution

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Hangzhou Freqcontrol Electronic Technology Ltd.
Location Room 1106, CIBC, No.198 Wuxing Rd, Hangzhou, P.R.China
Contact Person Xu

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