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> Lbo nonlinear optical crystal for 473NM blue laser
Lbo nonlinear optical crystal for 473NM blue laser
LBOSize:2x2x10mmCoaings:AR/AR@946+473nm Table 1.Chemical and Structural properties of LBO
Orthorhombic, Space group Pna21, Point group mm2
a=8.4473 , b=7.3788 , c=5.1395 , Z=2
ax=10.8x10-5/K, ay= -8.8x10-5/K, az=3.4x10-5/K
Table 2. Optical and Nonlinear Optical Properties of LBO
551 ~ 2600nm (Type I) 790-2150nm (Type II)
<0.1%/cm at 1064nm <0.3%/cm at 532nm
6.54mrad-cm ( , Type I,1064 SHG)
15.27mrad-cm (q, Type II,1064 SHG)
deff(I)=d32cos (Type I in XY plane)
deff(I)=d31cos2 +d32sin2 (Type I in XZ plane)
deff(II)=d31cos (Type II in YZ plane)
deff(II)=d31cos2 +d32sin2 (Type II in XZ plane)
Non-vanished NLO susceptibilities
nx2=2.454140+0.011249/( 2-0.011350)-0.014591 2-6.60x10-5 4
ny2=2.539070+0.012711/( 2-0.012523)-0.018540 2+2.0x10-4 4
nz2=2.586179+0.013099/( 2-0.011893)-0.017968 2-2.26x10-4 4
Figure . Transparency curve of LBO
* More than 480mW output at 395nm is generated by frequency doubling a 2W mode-locked Ti:Sapphire laser (<2ps, 82MHz). The wavelength range of 700-900nm is covered by a 5x3x8mm3 LBO crystal.
* Over 80W green output is obtained by SHG of a Q-switched Nd:YAG laser in a type II 18mm long LBO crystal.
* The frequency doubling of a diode pumped Nd:YLF laser (>500 J @ 1047nm, <7ns, 0-10KHz) reaches over 40% conversion efficiency in a 9mm long LBO crystal.
* The VUV output at 187.7 nm is obtained by sum-frequency generation.
* 2mJ/pulse diffraction-limited beam at 355nm is obtained by intra-cavity frequency tripling a Q-switched Nd:YAG laser.
