Table 4: Thermal focal length calculated using FEA.

CrystalLength (mm)Diameter (mm) Focal length of thermal lens (mm)
10 W15 W20 W

1Nd:YAG1031187958
2Nd:YAG1051187858
3Nd:YAG1531157656
4Nd:YAG1551157656
5Nd:KGW155533323
6Nd:KGW153533223
7Yb:YAG155499332248
8Yb:YAG153500332248
9Nd:YAG dual pump15558
10Nd:KGW dual pump15528
11Yb:YAG dual pump155251
12Nd:YAG composite155240
13Nd:KGW composite1551086
14Yb:YAG composite1551032