TeO2 Substrate

Tellurium Dioxide (TeO2) is an excellent acousto-optic crystal material, it is widely applied in the production of Acousto-optic modulator (AOM), Acousto-optical deflector (AOD), Laser Q-switches, RF spectrum analyzers in laser technology science and optoelectronic technology, because of its high figure of merit, which depended on high elastic coefficient and high refractive index.

OST Photonics offers high quality TeO2 substrates for researchers and industries. Crystal size and thickness can be customized according to your requirements. In addition, TeO2 boules are also available upon request.

Features

  • High elastic coefficient

  • High refractive index

  • Excellent physical and mechanical properties

Applications

  • Acousto-optic modulator, deflector and tunable filter

  • Laser Q-switches

  • RF spectrum analyzer

Processing Capability

  • Orientation: <110>, etc.

  • Dimension: 1”, 2”, 5x5mm, 10x5mm, 10x10mm, 15x15mm, 20x20mm, etc.

  • Thickness: 0.5mm, 1.0mm, 2mm, 5mm, 10mm, etc.

  • Available items: wafers, substrates, blanks and customized optics

Specification and Properties of TeO2 Substrates

Crystal System

Tetragonal, 422 (D4)

Growth Method

Czochralski

Crystal Lattice Constant

a = 4.8122 Å, c = 7.6157 Å

Melting Point

733 ℃

Density

6.0 g/cm3

Hardness

4 Mohs

Color

Colorless

Transmitting Range

0.33-5.0 μm

Transmissivity

>70% at 633 nm

Refractive Index

ne =2.411  no= 2.258 at 633 nm

Thermal Conductivity

3 W/mK

Acoustic Velocity

0.617 km/sec for shear wave along<110>       
4.26 km/sec for longitudinal wave along<001>

Sound and Light Quality Factors

1200×10^-18 sec/g for shear mode along<110>         
34.5×10^-18 sec/g for longitudinal mode along<001>

Orientation

<110>, etc.

Orientation Tolerance

±0.5° or better

Dimension

1”, 2”, 5x5mm, 10x5mm, 10x10mm, 15x15mm, 20x20mm, etc.

Dimension Tolerance

±0.1 mm or better

Thickness

0.5mm, 1.0mm, 2mm, 5mm, 10mm, etc.

Thickness

0.43mm, 0.5mm, 0.65mm, 1.0mm, etc.

Surface Finish

Single side polished (SSP)/Double sides polished (DSP)

Package

Class 100 clean bag, Class 1000 super clean room