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Yb:CaF2

Categories Laser Crystals
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
MOQ: 1 Pieces
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: TT
Supply Ability: 100 pieces /month
Model Number: CRYLINK- Yb:CaF2 Laser Crystal
Name: Yb:CaF2
Concentration Tolerance (atm%): 0.5 mol % ~ 30 mol %
Orientation: [111] or [100] < ±0.5°
Parallelism: 10
Perpendicularity: 15
Surface Quality: 10-5(MIL-O-13830A)
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Yb:CaF2

Yb: CaF2 is a new laser crystal which is formed by doping Yb into CaF2. The main emission peak are reported to be at 1033 nm and 1050 nm with the 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 wide 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 important potential application. Furthermore, at the current point of view the crystal growth technologies of Yb: CaF2 promise to be scalable, which allows for the production of excellent optical quality material.

Parameter

Material and Specifications

Concentration Tolerance (atm%)0.5 mol % ~ 30 mol %
Orientation[111] or [100] < ±0.5°
Orientation Tolerance< 0.5°
Parallelism10
Perpendicularity15
Surface Quality10-5(MIL-O-13830A)
Wavefront Distortion</8 @632 nm
Surface Flatness</8 @632 nm
Clear Aperture>90%
Chamfer<0.1×45°
Thickness/Diameter Tolerance±0.05 mm
Maximum Dimensions2*2-15*15 mm×20mm
Thermal Shock Resistance Parameter800 W/m
CoatingsAR≤ 0.2% @1030nm

Physical and Chemical Properties
Crystal Structurecubic
Lattice Constants5.462
Density3.18 g/cm3
Melting Point1418°C
Thermal Conductivity /(Wm-1K-1@25°C)9.71
Specific Heat/ (Jg-1K-1)0.8876
Thermal Optical Coefficient(dn/dT)11.3
Thermal Expansion /(10-6K-1@25°C )19
Hardness (Mohs)4
Young`s Modulus /GPa146
Tensile Strength/Gpa2

Optical and Spectral Properties
Laser Transition2F5/22F7/2
Laser Wavelength1033/1050
Optical Density0.1-0.8
Absorption Coefficient1.0 cm-1 ~ 7 cm-1
Pump Wavelength980 nm
Emission State Absorption Cross Section2.2×10-20 cm2
Ground State Absorption Cross Section0.8×10-20 cm2
Fluorescence Lifetime2.4 ms
Emission Band Width70 nm
Refractive Index @1.064m1.2996
Thermal Optical Coefficient (106 K1)-3.7
Transmission10% to 90%
Damage Threshold> 500 MW/cm2
Product Tags:

nd yag laser rod

  

laser material

  
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