Yb:KGW and Yb:KYW Crystals
|Doping concentration||0.5 - 5 atm. % for Yb:KGW
0.5 - 10 atm. % for Yb:KYW
|Orientation||b-cut: Nm-axis is parallel to input/ output faces.
Other orientations also available.
|Perpendicularity||≤ 10 arcmin|
|Parallelism error||≤ 10 arcsec|
|Chamfer||< 0.1 mm @ 45 deg|
|Surface Quality||10 - 5 scratch & dig|
The broad spectral emission band of Yb:KYW allows the tuning of the laser radiation over 1020-1060 nm range and the generation of femtosecond pulses shorter than 70 fs. Enhanced storage capacity, wide absorption spectrum at 980 nm and high absorption of pump radiation in a small crystal region allow an efficient use of diode laser pump.
As compared to YAG or glasses used as hosts for Yb3+, KYW and KGdW have the advantage of a larger absorption cross section than YAG, which decreases the minimum pump intensity necessary to achieve transparency in the quasi-two-level system of ytterbium.
|High absorption coefficient @ 980 nm|
|High stimulated emission cross section|
|Low laser threshold|
|Extremely low quantum defect|
|Broad output at 1020-1060 nm|
|High slope efficiency with diode pumping (>55%)|
|High Yb-doping concentration|
Order your item
You can customise this product to your needs. If you do not find suitable specifications for your application please contact us for custom solution.Fill form
Order from stock
Choose from 27 Yb:KGW and Yb:KYW Crystals