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LiNbO3 crystal is widely used as frequency
doublers for wavelength >1um, an optical parametric oscillators(OPOs)
pumped at 1064nm as well as quasi-phase-matched (QPM) devices. Due to its
large E-O and A-O coefficients, LiNbO3 crystal is the most commonly used
material for Pockel Cells, Q-switches and phase modulators, waveguide
substrate, surface acoustic wave(SAW) wafers, and etc.
Red Optronics supplies high quality and large size
LiNbO3 crystal for quasi-phase-matched
doublers and waveguide substrate and SAW wafers
1) Boules
| Diameter: |
f35~76mm |
| Length: |
100~300mm |
| Orientation: |
127.86 °Y,
64°Y, Y, Z0 |
| Ref. Flat
Orientation: |
X or
Y |
2) Wafers
| Diameter: |
f40.0mm,
f50.8mm,
f76.2mm ,
f101.6mm |
| Thickness: |
0.2~1.0mm |
| Orientation: |
X, Y, Z,
127.86 °Y, 64 °Y, 135 °Y |
| Ref. flat
orientation: |
X or
Y |
| Ref. Flat
width: |
16± 2mm,
18± 2mm, 22± 2mm, 32± 2mm |
| Front
polish: |
0.016
~0.001μm |
| Back
lapping: |
0.3
~10 |
| Flatness: |
≤15μm |
| Bow: |
≤20μm for
dia <18mm,
≤40μm for dia 22 ~ 32mm |
3)
Slices(Rectangular)
| Size: |
300x35x2mm,
150x45x2mm |
| Orientation: |
Z, X, Y, Z, 127.86 °Y,
64 °Y, 135 °Y |
Other LiNbO3 crystals series MgO:LiNbO3, ZnO:LiNbO3, Fe:LiNbO3 are also available upon
request.
Notes:
To inquire or order
a finished LiNbO3 crystals, please provide your specification as listed in above.
Physical and
optical properties:
| Crystal
Structure |
Trigonal,
space group R3c |
| Cell
Parameters |
a = 0.515,
c = 13.863, Z = 6 |
| Melting
Point |
1255
+/-5°C |
| Curie
Point |
1140
+/-5°C |
| Mohs
Hardness |
5 |
| Density |
4.64
g/cm3 |
| Absorption
Coefficient |
~ 0.1%/cm
@ 1064 nm |
| Solubility: |
insoluble
in H2O |
| Relative
Dielectric Constant |
eT11/e0: 85
eT33/e0: 29.5 |
| Thermal
Expansion Coefficients at 25℃ |
||a, 2.0 x
10-6/K @ 25°C
||c, 2.2 x
10-6/K @ 25°C |
| Thermal
Conductivity |
38 W /m /K
@ 25°C |
| Transparency Range |
420 - 5200
nm |
| Refractive
Indices |
ne = 2.146,
no = 2.220 @ 1300 nm
ne = 2.156,
no = 2.322 @ 1064 nm
ne = 2.203,
no = 2.286 @ 632.8 m |
| Optical
Homogeneity |
~ 5 x
10-5 /cm |
| Sellmeier
Equations( l
in mm) |
no2(l) =
4.9048+0.11768/(l2 - 0.04750) - 0.027169
l2
ne2(l) =
4.5820+0.099169/(l2- 0.04443) - 0.021950
l2 |
| NLO Coefficients |
d33 = 34.4
pm/V
d31 = d15 = 5.95
pm/V
d22 = 3.07 pm/V |
| Electro-Optic
Coefficients |
gT33 = 32 pm/V,
gS33 = 31 pm/V
gT31 = 10 pm/V,
gS31 = 8.6 pm/V
gT22 = 6.8 pm/V,
gS22 = 3.4 pm/V, |
Half-Wave
Voltage, DC
Electrical field ||z, light ^ z
Electrical field
||x or y, light || z |
3.03 KV
4.02 KV |
| Damage
Threshold |
200
MW/cm2 (10
ns) |
| Efficiency NLO Coefficients |
deff=5.7pm/V or~14.6xd36(KDP)
for frequency doubling 1300 nm;
deff=5.3pm/V or~13.6xd36(KDP) for OPO pumped
at 1300nm;
deff=17.6pm/V or~45xd36(KDP) for
quasi-phase-matched structure; |
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