Cr⁴⁺:YAG crystal is an excellent passive Q-switch crystals for Nd and Yb doped laser whose wavelength is in the range of 900-1200 nm,especially for the diode pumped or lamp pumped Nd:YAG,Nd:YLF and Yb:YAG. Due to Cr4+:YAG has chemically stable,durable,UV resistant,good thermal conductivity and high damage threshold (>500 MW/cm2),it will replace traditional materials,such as,LiF,organic Dye and color centers for passive Q-switching online_ordering.

 

Typical Specification:

Cr ⁴⁺ dopant concentration: 0.5 mol% ~ 3 mol%                                    

Diameter: 3-10mm                                                                        

WidthxLength: 3x3-10x10mm                                                                                

Transmission: 5%~95%@1064nm

Orientation：[100] or [111] within 5°                                                        
Wavefront Distortion：<λ/10 at 632.8nm
Surface quality：10-5 S/D
Parallelism :< 10 arc seconds 
Perpendicularity: < 5 arc minutes
Clear aperture:>95%
Protective bevel
Damage threshold: over 15J/cm² (rods without coating) over 700 MW/cm² (coating) 
Coatings :  

1.         AR@1064nm,R < 0.1%;

2.         AR@1064nm,R < 0.1%; HT@808nm,T > 95%;

3.         HR@1064nm,R < 99.8%; HT@808nm,T > 95%;

4.         HR@1064nm,R < 99.8%;

HT@808nm,T > 95%;HR@532nm,R > 99%;