We offer various specifications of Cr3+:LiSAF crystals. The Cr3+:LiSAF gain medium has a broad emission band in the near infrared. Cr:LiSAF crystals can be grown with very low loss levels (<0.2%/cm). It enables the construction of high-Q cavities, resulting in lasing thresholds as low as 2 mW and slope efficiencies exceeding 50%.
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Catalog Number
ACMA00027527
Product Name
Cr:LiSAF Crystals, uncoated
Doping
0.03
Wedge Of Ends
Brewster cut
Width
5 mm
Height
5 mm
Length
12 mm
Orientation
a-cut
DimensionTolerance
W±0.1mm/H±0.1mm/L±0.2mm
Coating
uncoated
Flatness
λ/10@632.8 nm
Parallelism
< 20 arcsec
Perpendicularity
<10 arcmin
Surface Quality
10-5 S-D
ClearAperture
>90%
Crystal Structure
trigonal
Density
3.45 g/cm3
Wavelength
830 (780-920) nm (laser wavelength)
Refractive Indices
1.41
Expansion Coefficient
(Thermal expansion coefficient) 22×10-6 (//a) /K, 3.6×10-6 (//c) /K
Thermal Optical Coefficient
(dn/dT) -4.2×10-6 (//a) /K, -4.6×10-6 (//c) /K
Thermal Conductivity
4.6 (||a), 5.1 (||c) W/m/K
Damage Threshold
(Laser-induced) >10 J/cm2@1064 nm, 10 ns
Chamfers
<0.1 mm at 45˚
Absorption Cross Section
(at peak) 5.5×10-20 cm2
Bandwidth
(absorption bandwidth at a peak wavelength) ~100nm
Emission Cross Section
5×10-20 cm2
Absorption Wavelength
670 nm
Moh'sHardness
4
MSDS
COA
Spec Sheet
Broad absorption and emission bands; nonlinear refractive index ~4 times lower than Ti:Sapphire
Femtosecond Lasers and CPA Laser Systems