Yb3+:KYW crystals have large gain bandwidths and fairly high emission cross sections. The ytterbium doping concentration in Yb:KYW crystals can be very high without significant quenching. Yb:KYW crystals also have small quantum defects. We can provide Yb3+:KYW crystals with different specifications.
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Catalog Number
ACMA00027488
Product Name
Yb:KYW Crystals, 2%Doping, Brewster-angle cut, 3mm*3mm
Doping
0.02
Wedge Of Ends
Brewster-angle cut
Width
3 mm
Height
3 mm
Length
5 mm
Orientation
Ng-cut; Np(b)-cut and other orientation available
DimensionTolerance
W±0.1mm/H±0.1mm/L±0.2mm
Coating
uncoated
Flatness
<λ/10@632.8 nm
Parallelism
< 10 arcsec
Perpendicularity
<10 arcmin
Surface Quality
10-5 S-D
ClearAperture
>90%
Crystal Structure
Monoclinic
Lattice Parameters
a=8.05Å, b=10.35Å,
c=7.54Å, β=94°
Density
6.61 g/cm3
Wavelength
1020 (1020-1050) nm (laser wavelength)
Refractive Indices
(@1040nm) ng= 2.037, np= 1.986, nm= 2.033
Expansion Coefficient
(Thermal expansion coefficient)
αp= 1.9 × 10-6 /K
αm= 10.3 × 10-6 /K
αg= 16.5 × 10-6 /K
Thermal Optical Coefficient
dnp/dT = -13.08 × 10-6 /K
dnm/dT = -7.61 × 10-6 /K
dng/dT = -11.83 × 10-6 /K
Thermal Conductivity
~3.3 W/m/K
Damage Threshold
(Laser-induced) >10 J/cm2@1040 nm, 10 ns
Chamfers
<0.1 mm at 45˚
Absorption Cross Section
(at peak wavelength) 14×10-20 cm2
Bandwidth
(absorption bandwidth at a peak wavelength) ～3 nm
Emission Cross Section
(@1030) 2.5×10-20 cm2
Absorption Wavelength
980 nm
Moh'sHardness
4~5
MSDS
COA
Spec Sheet
Large gain bandwidth; high emission cross section; small quantum defects; high doping level; sufficiently high thermal conductivity
Femtosecond lasers and regenerative amplifiers; CW and passively mode-locked thin-disk lasers