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LiTaO3

LiTaO3 is an E-O crystal widely used for E-O devices, due to its good optical NLO and E-O properties, as well as high damage threshold. CASTECH supplies high quality LiTaO3 boules and wafers.
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Introduction

    LiTaO3 is an E-O crystal widely used for E-O devices, due to its good optical NLO and E-O properties, as well as high damage threshold. CASTECH supplies high quality LiTaO3 boules and wafers with the following specifications for standard applications. We can also offer other specifications upon request.

 

Basic Properties of LiTaO3

 

Crystal Structure Trigonal, Space group R3c, Point group 3m         
Cell Parameters a=5.154Å,c=13.781Å
Melting Point 1650℃
Curie Temperature 607℃
Mohs Hardness 5.5
Density 7.46g/cm3
Dielectric Constants

ε110:51.7

ε330:44.5

Elastic Stiffness Coefficients

CE11:2.33(×1011N/m2

CE33:2.77(×1011N/m2

Piezoelectric Strain Constants

d22:2.4(×10-11C/N)

d33:0.8(×10-11C/N)

Transmission range 400-4500nm
Electro-optical coefficients r33=30.4pm/V
Refractive index at 632.8nm          no=2.176,ne=2.180

 

Typical Specifications:

 

Type

Specifications

Boule Wafer
Diameter Φ3″   Φ3″ Φ4″
Length or Thickness ≤100mm ≤50mm 0.35-0.5mm
Orientation 127.86°Y,64°Y,135°Y,X,Y,Z,and other cut      
Ref. Flat Orientation X,Y
Ref. Flat Length 22±2mm 2mm 22±2mm 32±2mm
Front Side Polishing   Mirror polished 5-15Å
Back Side Lapping   0.3-1.0μm
Flatness(μm)   ≤15
Bow(μm)   ≤25

 

 

Keyword:
LiTaO3
boules and wafers
Electro-optic crystal
piezoelectric strain constants
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  • LiTaO3

  • LiTaO3 is an E-O crystal widely used for E-O devices, due to its good optical NLO and E-O properties, as well as high damage threshold. CASTECH supplies high quality LiTaO3 boules and wafers.
Description
Cas'Tech Class
Parameters
Download

Introduction

    LiTaO3 is an E-O crystal widely used for E-O devices, due to its good optical NLO and E-O properties, as well as high damage threshold. CASTECH supplies high quality LiTaO3 boules and wafers with the following specifications for standard applications. We can also offer other specifications upon request.

 

Basic Properties of LiTaO3

 

Crystal Structure Trigonal, Space group R3c, Point group 3m         
Cell Parameters a=5.154Å,c=13.781Å
Melting Point 1650℃
Curie Temperature 607℃
Mohs Hardness 5.5
Density 7.46g/cm3
Dielectric Constants

ε110:51.7

ε330:44.5

Elastic Stiffness Coefficients

CE11:2.33(×1011N/m2

CE33:2.77(×1011N/m2

Piezoelectric Strain Constants

d22:2.4(×10-11C/N)

d33:0.8(×10-11C/N)

Transmission range 400-4500nm
Electro-optical coefficients r33=30.4pm/V
Refractive index at 632.8nm          no=2.176,ne=2.180

 

Typical Specifications:

 

Type

Specifications

Boule Wafer
Diameter Φ3″   Φ3″ Φ4″
Length or Thickness ≤100mm ≤50mm 0.35-0.5mm
Orientation 127.86°Y,64°Y,135°Y,X,Y,Z,and other cut      
Ref. Flat Orientation X,Y
Ref. Flat Length 22±2mm 2mm 22±2mm 32±2mm
Front Side Polishing   Mirror polished 5-15Å
Back Side Lapping   0.3-1.0μm
Flatness(μm)   ≤15
Bow(μm)   ≤25

 

 

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