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Basic Info

Model NO.	FW-CRYSTAL
After-sales Service	After-Sale Service
Warranty	12
Shipping	FedEx, DHL, UPS...
Currency	USD, Euro, RMB
Polish	Customized
Coating	Customized
Transport Package	Box
Specification	costomized
Trademark	FineWin
Origin	China

Product Description

Tellurium Dioxide Crystal (TeO2) is one of the best Acousto-Optic crystals even grown, and extensively used in AO modulators, deflectors, AO tunable filters (AOTFs), laser Q-switches, RF spectrum analyzers. We provides various laser-grade Tellurium Dioxide devices.

Main Specifications
	Boule	Wafer
Growth direction	[100] [110] [111]	[110] [001] [111]
Dimension	f 35 ~ 50mm	f35 ~ 50mm
Length/Thickness	50 ~ 60mm	0.2 ~ 1.0mm
Flatness		≤ 15 mm
Bow		≤ 15 mm

Physical Properties
Crystal Structure	Tetragonal
Point Group	422
Lattice Parameter )nm)	a 0.4810c 0.7613
Density	5.99 g/cm3
Melting Point	730°C
Mohs Hardness	4.5
Transparency Range (nm)	350 ~ 500
Gradient of Refractive Index(×10-15)/cm	≤ 5
Refractive Index	no = 2.260n3 = 2.142
Transmittivity	70%@632.8nm
Phase Velocity (m/s)	616
Photo-elastic Coefficient	P11=0.074 P13=0.340 P31=0.091 P33=0.240
Figure of Merit( ×10-18S3)/g	M2 793

Application:
TeO2 crystals can be used to produce kinds of acousto-optic device, such as acousto-optic deflector, acousto-optic Q-switched and SAWD. Thus, these crystals are widely used in lidar, the scanning of TV and large screen's displayer, the optical memory of photon computer and laser communication.We can provide 2inch, 3inch 4inch TeO2 ingots and all specs of wafers,bars, and blocks. Any of your questions and comments are warmly welcome.

Characteristic:
TeO2, Colorless synthetic single crystal, grown from melt with Czochralski methodSymmetry: Tetragonal, 422 (D4)Lattice distances: a = 4.8122 A; c = 7.6157 AMolecular weight: 159.5Density, g/cm3: 5.99 ± 0.03Melting point: 733 0СHardness: 3 - 4 Moh's hardness scaleThermal expansion, ·10-6 К-1: α11 = 17.7; α22 = 17.7; α33 = 5.5Transmission: 0.35 - 5.0 μm

Facilities: