Yb:CALGO crystal is a novel laser active material used to generate high energy ultrashort pulses with less than one hundred femtoseconds (< 100 fs). From ytterbium doped laser crystals family Yb:CALGO crystal is used to generate the shortest pulses.
Yb:CALGO crystals from stock
Description
Yb CALGO crystal is a novel laser active material used to generate high energy ultrashort pulses with less than one hundred femtoseconds (< 100 fs). From ytterbium doped laser crystals family Yb:CALGO crystal is used to generate the shortest pulses. Relatively large absorption cross section at around 979 nm makes the crystal well suited for diode pumping. Efficient absorption and low quantum defect let’s to build compact lasers for high power applications.
Specifications
Physical and Thermal Properties
| Chemical formula | Yb:CaGdAlO4 |
| Possible dopant concentrations | 1 – 10 at. % |
| Crystal structure | tetragonal |
| Lattice constants | a = 3.66 Å, c = 1.2 Å |
| Density | 4.8 g/cm3 |
| Mohs hardness | 6 |
| Melting point | 1850 °C |
| Thermal conductivity | K[001]= 6.3 W/(mxK), K[100]= 6.9 W/(mxK) |
| Termal expansion coefficients | αa= 10.1 x 10-6 °C-1, αc= 16.2 x 10-6 °C-1 |
Spectroscopic Properties
| Absorption peak wavelength | 979 nm |
| Absorption cross-section at peak wavelength | 2.7 × 10-20 cm2 |
| Absorption bandwidth (FWHM) | 4.2 nm |
| Emission wavelength | 1018 – 1052 nm |
| Emission cross-section at 1035 nm | 0.8 × 10-20 cm2 |
| Fluorescence lifetime | 420 μs |
Standard Manufacturing Specifications
| Cut orientation error: | +/- 30 arcmin |
| Dimensions tolerance: | +/- 0.1 mm |
| Clear aperture: | > 85% of aperture dimensions |
| Surface quality: | 20-10 S-D |
| Surface flatness: | < λ/10 @ 633 nm |
| Parallelism error: | < 20 arcsec |
| Perpendicularity error: | +/- 5 arcmin |
Products
Product | Doping | Orientation | Dimensions | Length | Wedge | Coatings | Price | Delivery | Quantity | |
|---|---|---|---|---|---|---|---|---|---|---|
Yb-CALGO-2-3x3x3-AR | 2 at.% | a-cut | 3 x 3 mm | 3 mm | < 20 arcsec | AR/AR 970-1100 nm | 810.00€ | from stock |
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