YbCaF2laser crystals Yb:CaF2is a good materials for use indiode-pumped femtosecond (fs) lasers and amplifiers.Features: • Low quantum defect
 • Long fluorescence lifetime • High optical-to-optical conversion efficienciesAbsorption peak wavelength 980nmLong fluorescence lifetime 2.4msDopant concentrationIndex homogeity <5ppmMeta-Photonics Yb:CaF2 Crystals • Absorption coefficient: 0.5~3.0cm-1; • Maximal Size: dia95mm • Custom design prouction (special doping concentration,Website:http://www.meta-laser.com, shape, coating) is availableSpecificationParameters of MaterialsMaterialsYb:CaF2Transmission1%,3%,5%,10%Orientation<111>or <100>CoatingsAR/AR@940+1030nm,S1,S2:R＜0.2％@1030nm.Polishing Specification for Laser GradeOrientation Tolerence< 0.5°Thickness/Diameter Tolerance±0.05mmSurface Flatness<λ/8@632nmWavefront Distortion<λ/4@632nmSurface Quality10/5Parallel30〞Perpendicular15ˊClear Aperture>90%Chammfer<0.2×45°Room-temperature emission spectra of Yb:CaF2 and Yb:Na:CaF2 at various codoping levelsAbsorption and emission cross-section spectra of Yb3+-doped CaF2, SrF2 and BaF2 at 77 KSpectroscopic and laser parameters