Del Mar Photonics - Newsletter December 2010 - Newsletter April 2011

LiTaO3 Substrates

we supply LiTaO3 wafers as well as LiTaO3 bulk crystals.

An example of thin LiTaO3 substrates - request a quote
LiTaO3 thin substrates
Y-cut, aperture 10x24 mm (X, Z axes) and 50 microns thick (Y axis)
both sides polished 20/10 S/D

 

An example of LiTaO3 crystal is shown below

LiTaO3 crystal for EOM (Electro-optic modulator) - request a quote
5 mm (X) x 5 mm (Z) x 40 mm (Y)
Sides 5x5 are polished 20/10 S/D and AR coated
Metal electrodes Au+Cr
lambda/4 flat
< 30" parallel

We have crystals of different cuts and sizes available in stock that can be quickly AR coated for required wavelength and metallized if necessary.

LiTaO3
 
 
 Model   Product Name+   Buy Now 
 CR-LiTaO3-2-2-12.5   LiTaO3 crystal, Y-cut, 2x2x12.5 mm  Buy Now 
 CR-LiTaO3-2-2-13   LiTaO3 crystal, Y-cut, 2x2x13 mm  Buy Now 
 CR-LiTaO3-3.2-3.2-40   LiTaO3 crystal, Y-cut, 3.2x3.2x40 mm  Buy Now 
 CR-LiTaO3-3-3-15   LiTaO3 crystal, Y-cut, 3x3x15 mm  Buy Now 
 CR-LiTaO3-5-5-40   LiTaO3 crystal, Y-cut, 5x5x40 mm  Buy Now 
 CR-LiTaO3-6-20-5   LiTaO3 crystal, Y-cut, 6x20x5 mm  Buy Now 
 CR-LiTaO3-10-10-0.5   LiTaO3 crystal, Z-cut, 10x10x0.5 mm  Buy Now 
 CR-LiTaO3-25-25-100m   LiTaO3 crystal, Z-cut, 25x25 mm, 100 m  Buy Now 
 CR-LiTaO3-5-5-2   LiTaO3 crystal, Z-cut, 5x5x2 mm  Buy Now 
 RAP-LiTaO3-6-6-6   LiTaO3 prism, 90 cut, 6x6x6 mm  Buy Now 
 W-LiTaO3-15-15-100   LiTaO3 wafer, Z-cut, 15x15 mm, 100 m  Buy Now 
 W-LiTaO3-18-18-75   LiTaO3 wafer, Z-cut, 18x18 mm, 75 m  Buy Now 
 WA-LiTaO3-10-0.615   LiTaO3 wafer, Z-cut, ø 10 mm x 0.615 mm  Buy Now 
 WA-LiTaO3-10-50   LiTaO3 wafer, Z-cut, ø 10 mm, 50 m  Buy Now 
 WA-LiTaO3-12-0.6   LiTaO3 wafer, Z-cut, ø 12 mm x 0.6 mm  Buy Now 
 WA-LiTaO3-12-60   LiTaO3 wafer, Z-cut, ø 12 mm, 60 m  Buy Now 
 WA-LiTaO3-12-60   LiTaO3 wafer, Z-cut, ø 12 mm, 60 m  Buy Now 
 WA-LiTaO3-12-60   LiTaO3 wafer, Z-cut, ø 12 mm, 60 m  Buy Now 
 WA-LiTaO3-15-50   LiTaO3 wafer, Z-cut, ø 15 mm, 50 m  Buy Now 
 WA-LiTaO3-20-0.54   LiTaO3 wafer, Z-cut, ø 20 mm x 0.54 mm  Buy Now 

Lithium Tantalate Elements for Pyroelectric Detector

Lithium Tantalate crystal ( LiTaO3 ) - Lithium Tantalate frequency filter

Lithium Tantalate exhibits unique electro-optical, pyroelectric and piezoelectric properties combined with good mechanical and chemical stability and , wide transparency range and high optical damage threshold. This makes LiTaO3 well-suited for numerous applications including electro-optical modulators, pyroelectric detectors, optical waveguide and SAW substrates, piezoelectric transducers etc.

Material propeties

Crystal symmetry Trigonal, 3m
Lattice constant, A a = 5.154       c = 13.783
Density, g/cm3 7.45
Melting point , C 1650
Curie point , C 610
Mohs hardness 6
Solubility Insoluble in water
Color Colorless or light yellow
Thermal expansion coefficient, 10-6/ C aa = 16   ac = 4
Specific heat, cal/gC 0.06
Thermal conductivity , mW/cm C 46
Dielectric Constant (@ 100 KHz) ea = 54    ec = 43
Transparency range, nm 400 - 5500
Refractive indices @ 633 nm no = 2.175   ne = 2.180
Electro-optic coefficients
pm/V @633 nm, high frequency
r33 = 33
r13 = 8
r22 = 20
Nonlinear optical coefficients
p/m/V @ 1064 nm
d22 = 2.0
d31 = - 1
d33 = -21
Pyroelectric Coefficient: -2.3 10-4 C/C/m2
Optical homogeneity ~10-5
Absorption loss @ 1064 nm < 0.15 %/cm

 

Electro Optic Pockels Cells 
Optical Waveguide Substrates 
Pyroelectric Detector Substrates
Piezoelectric Transducers