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LiNbo3 crystal

LiNbo3 crystal

LiNbo3 crystal
Product name : LiNbo3 crystal
Item : 009
Details :

Lithium Niobate Crystal (LiNbO3), also known as LN crystal, are widely used in Nonlinear Optical applications, such as OPO, DFG and SHG etc., along with SAW, Electro-Optical(EO) and Pyroelectric applications.

Our LiNbO3 (LN) crystal feature:
1.As thin as 1.25x1.25x40mm devices available
2.MgO doped & Fe dopped LiNbO3 crystal also available
3.Massive production to support industrial customers
4.Free Technical Support

Lithium Niobate Crystal (LiNbO3) is one of the few man-made crystals with many merits, including chemical stability, non-hygroscopicity, a high NLO/EO/AO coefficient, the availablity of large size, and the low cost. The high NLO coefficient makes LN one of the best NLO crystals for low or middle-power laser systems; and the high EO coefficient makes LiNbO3 crystal the most common material in EO modulations, (such as Pockels Cells). In addition to the above, LiNbO3 are also used as substrates, and SAW devices, etc.
The only disadvantage is the low damage threshold, which can be solved by introducing Magnesium into LiNbO3 to form MgO:LiNbO3 crystal.

LN crystal & wafer pictures



LN crystal optical properties

Transmitting Range:
400nm~5000nm
Transmittance:
better than 68% at 633nm
Refractive Indices:
@1064nm
2.232(no)
2.156(ne)
@808nm
2.2542(no)
2.1750(ne)
@532nm
2.3232(no)
2.2342(ne)
Sellmeier Equations: (l in µm)
No2 = 4.9048 + 0.11768 / (l2 - 0.04750) - 0.027169l2
Ne2 = 4.5820 + 0.099169 / ( l2 - 0.04443) - 0.021950l2
NLO Coefficient: (p/m/V,1064nm)
d31=-4.5
d33=-0.27
d22=2.1
E-O Coefficient: (pm/V, 633nm)
r33=31
r31=9
r22=3.4


LN crystal physical properties

Crystal Structure:
Trigonal
space group:
3m
Melting point :
1250 degree (Celsius)
Cell Parameters:
a=b=5.148Å, c=13.863Å
Mohs Hardness:
»5
Density:
4.64g/cm3
Hygroscopic Susceptibility
no
Thermal Conductivity(W/cm·K):
0.056
Thermal Expansion Coefficient:
parallel to a: 15.4x10-6; parallel to c: 7.5x10-6