Language
LBO (LiB3O5) is an excellent non-linear optical crystal. It is phase matchable for the SHG and THG of Nd:YAG and Nd:YLF lasers, using either type I or type II interaction. LBO is a non-linear optical ..
LBO (LiB3O5) is an excellent non-linear optical crystal. It is phase matchable for the SHG and THG of Nd:YAG and Nd:YLF lasers, using either type I or type II interaction. LBO is a non-linear optical crystal perfectly suited for harmonic generation as well as sum frequency mixing and OPO applications using widely spread Nd lasers, Ti:Sapphire and Dye lasers. Such physical LBO properties as excellent optical homogeneity, non hygroscopicity and very high damage threshold assure long and stabile operation of crystal. LBO crystal is the first choice as harmonic generator of high peak power pulsed lasers.
|
CRYSTAL STRUCTURE
|
Orthohomic, Space group Pna21
Point group mm2 |
|
LATTICE PARAMETERS
|
a = 8.4473Å, a = 7.3788Å, c = 5.139Å, z = 2
|
|
MELTING POINT
|
About 834°C
|
|
MOHS HARDNESS
|
6
|
|
DENSITY
|
2.47 g/cm3
|
|
THERMAL CONDUCTIVITY
|
3.5W/m/K
|
|
THERMAL EXPANSION COEFFICIENT
|
ax=10.8x10-5/K av=-8.8x10-5/k az=3.4x10-5/K
|
|
TRANSPARENCY RANGE
|
160-2600nm
|
|
SHG PHASE MATCHABLE RANGE
|
551-2600nm(Type I) 790-2150(Type II)
|
|
REFRACTIVE INDICIES
|
1.0642um nx=1.5656, nv=1.5905, ne=1.6055
0.5321um nx=1.5785, nv=1.6065, ne=1.6212 0.2660um nx=1.5973, nv=1.6286, ne=1.6444 |
|
THERM-OPTIC COEFFICIENT
(°C, Λ IN Μ M) |
dnx/dT=-9.3X10-6
dny/dT=-13.6X10-6 dnz/dT=(-6.3-2.1 λ)X10-6 |
|
ABSORPTION COEFFICIENT
|
<0.1%/cm at 1664nm
<0.3%/cm at 532nm |
|
LBO COEFFICIENTS
|
deff(I)=d32cosφ (Type I in XY plane)
deff(I)=d31cos2θ+d32sin2θ (Type I in XZ plane) deff(II)=d31cosθ (Type II in YZ plane) deff(II)=d31cos2θ+d32sin2θ (Type II in XZ plane) |
|
NON-VANISHED LBO SUSCEPTIBILITIES
|
d31=1.05±0.09pm/V
d32=-0.98±pm/V d33=0.05±0.006pm/V |
|
SELLMEIER EQUATIONS
(Λ IN Μ M) |
nx2=2.454140+0.011249/( λ2-0.011350)-0.014591 λ2-6.60x10-5 λ4
ny2=2.539070+0.012711/( λ2-0.012523)-0.018540 λ2=2.0x10-4 λ4 nz2=2.586179+0.013099/( λ2-0.011893)-0.017968 λ2=2.26x10-4 λ4 |
