Yb: CaF2 (Ytterbium-doped CaF2)
Yb:CaF2 Crystal for 1020-1080nm Laser
Pump Laser：532nm/10- 20kHz/25W/20ns；
Coating: AR@532nm &780nm &980nm，R<0.5%，Damage threshold up to 750MW/cm2.
Yb:CaF2 Crystal Case (2)
Size: Φ12.7×3.5 mm;
Transmitted WFD: <L/2 @ 633 nm over clear aperture (target <L/4)
Yb:CaF2 Crystal Case (3)
Size: 3×3×4 mm;
Doping level: 5%;
Coating S1/S2: AR(R<0.15%) @1035-1055nm+AR(R<0.5%) @ 980 nm, AOI = 0° With a 1 deg wedge
Yb:CaF2 Crystal Case (4)
Size: Φ12.7×3 mm;
Yb doping concentration: 5 +/-0.1 at.%
Yb:CaF2 Crystal Case (5)
Size: 3×3×4 mm, 2×7×6mm;
Coating:S1/S2: AR@1035- 1055nm+AR@ 980 nm
- Kerr-lens mode-locked oscillator
- Yb: CaF2 thin-disk laser
- Diode-pumped Yb: CaF2 amplifier
- Wide emission linewidth
- Low quantum defect
- Comparably long fluorescence lifetime
- High thermal conductivity
- Thermo-optical coefficient
Yb:CaF2 is a new laser crystal formed by doping Yb into CaF2. The central emission peak is reportedly at 1033 nm and 1050 nm, with an emission linewidth of 70 nm. Because of the absence of undesired loss transitions such as up-conversion, excited state-absorption, and concentration quenching, their low quantum defect, a comparably long fluorescence lifetime, high thermal conductivity, and broad emission linewidth, ytterbium-doped CaF2 is preferably utilized for high-power diode-pumped systems and laser amplifiers with high optical-to-optical conversion efficiencies, diode-pumped femtosecond (fs) lasers and amplifiers are one of the critical potential application. Furthermore, from the current point of view, the crystal growth technologies of Yb: CaF2 promise to be scalable, allowing for producing excellent optical quality material.
| 1.87 μm laser operation by 980 nm pumping in Yb,Tm:CaF2 Optical Materials,Volume 72,50017,Pages 578-582 |
| A quantitative thermal and thermomechanical analysis for design optimization and robustness assessment of microassembled high power Yb:CaF2 thin-disk Laser Optics & Laser Technology,Volume 105,50018,Pages 229-241 |
| Effect of Yb3+ concentration on optical properties of Yb:CaF2 transparent ceramics Optical Materials,Volume 34, Issue 6,50012,Pages 965-968 |
| Performance of a quantum defect minimized disk laser based on cryogenically cooled Yb:CaF2 Optics & Laser Technology,Volume 92,50017,Pages 19-23 |
| The dependence of optical anisotropy parameter on dopant concentration in Yb:CaF2 and Tb:CaF2 crystals Optical Materials,Volume 77,50018,Pages 127-131 |
| Yb:CaF2 grown by liquid phase epitaxy Optical Materials,Volume 33, Issue 11,50011,Pages 1616-1620 |
If you can’t find the Literature you want, Contact us to get the PDF Get the Literature
Size: 3x3x4 mm
Coating: S1/S2 AR(R<0.15%)@1035-1055nm+AR(R<0.5%)@980nm,AOI=0°
Doped: 5%
Size: 3x3x7/ 3x3x10 mm
Size: Φ12.7×3.5 mm
Want to get more information about what kind of Yb:CaF2 crystals crylink have supplied?
Parameter
| Concentration Tolerance (atm%) | 0.5 mol % ~ 30 mol % |
| Orientation | [111] or [100] < ±0.5° |
| Orientation Tolerance | < 0.5° |
| Parallelism | 10〞 |
| Perpendicularity | 15ˊ |
| Surface Quality | 10-5(MIL-O-13830A) |
| Wavefront Distortion | <λ/8 @632 nm |
| Surface Flatness | <λ/8 @632 nm |
| Clear Aperture | >90% |
| Chamfer | <0.1×45° |
| Thickness/Diameter Tolerance | ±0.05 mm |
| Maximum Dimensions | 2*2-15*15 mm×20mm |
| Thermal Shock Resistance Parameter | 800 W/m |
| Coatings | AR≤ 0.2% @1030nm |
| Crystal Structure | cubic |
| Lattice Constants | 5.462 Å |
| Density | 3.18 g/cm3 |
| Melting Point | 1418°C |
| Thermal Conductivity /(W·m-1·K-1@25°C) | 9.71 |
| Specific Heat/ (J·g-1·K-1) | 0.8876 |
| Thermal Optical Coefficient(dn/dT) | −11.3 |
| Thermal Expansion /（10-6·K-1@25°C ） | 19 |
| Hardness (Mohs) | 4 |
| Young`s Modulus /GPa | 146 |
| Tensile Strength/Gpa | 2 |
| Laser Transition | 2F5/2→2F7/2 |
| Laser Wavelength | 1033/1050 |
| Optical Density | 0.1-0.8 |
| Absorption Coefficient | 1.0 cm-1 ~ 7 cm-1 |
| Pump Wavelength | 980 nm |
| Emission State Absorption Cross Section | 2.2×10-20 cm2 |
| Ground State Absorption Cross Section | 0.8×10-20 cm2 |
| Fluorescence Lifetime | 2.4 ms |
| Emission Band Width | 70 nm |
| Refractive Index @1.064μm | 1.2996 |
| Thermal Optical Coefficient (10−6 K−1) | -3.7 |
| Transmission | 10% to 90% |
| Damage Threshold | > 500 MW/cm2 |
| Material | Dimensions，mm | Coatings |
| Yb(5%):CaF2 | dia 5 | AR≤ 0.2% @1030+940nm |
| 3×3 | ||
| 6×6 | ||
| Yb(3%):CaF2 | dia 5 | |
| 3×3 | ||
| 6×6 |
