|
Optical Grade LiNbO3 Crystal
Lithium Niobate(LiNbO3)
Crystal is widely used as frequency
doublers for wavelength > 1 mm and optical parametric
oscillators (OPOs) pumped at 1064 nm as well as
quasi-phase-matched (QPM) devices. Due to its large
Electro-Optic (E-O) and Acousto-Optic (A-O)
coefficients.
We
supplies high quality and large size LiNbO3
crystals for laser frequency doublers, OPOs and
quasi-phase-matched doublers, as well as waveguide substrate
and SAW wafers. High quality LiNbO3
finished components with aperture of (2 - 15) x (2 - 15) mm2
and length up to 50 mm for frequency doublers and optical
parametric oscillators (OPOs), 50x50x1 mm3 or Dia. 3" x 1 mm
LiNbO3 substrate for
waveguide optics, and Dia. 3" optical wafers are available with
high volume and at low price.
|
Physical
Properties |
|
|
Crystal
Structure |
Trigonal,
space group R3c |
|
Cell
Parameters |
a =
0.515, c = 13.863, Z = 6 |
|
Melting
Point |
1255
+/-5℃ |
|
Curie
Point |
1140
+/-5℃ |
|
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癈 |
||a, 2.0
x 10-6/K @ 25 |
|
Thermal Conductivity |
38 W /m /K @ 25℃ |
|
Optical
Properties |
|
|
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; |
contact cscbbs@126.com |
