BBO（-BaB2O4 or BBO）
Specification:
| Material | BBO |
| Aperture | 1*1-12*12mm |
| Length | 0.02-25mm |
| Phase matching angles | ditermined by different kinds of harmonic generation |
| Phase matching type | type I or type II |
| Surface flatness | <lambda/8@633nm |
| Wavefront distortion | <lambda/8@634nm |
| Surface quality | better than 20/10 |
| Parallelism | <20″ |
| Perpendicularity | <5″ |
| Coating | protective coating or AR coating |
Standard BBO
| Part no. | Dimension(mm) | Theta(deg) | Phi(deg) | Coating | Application |
| BBO001 | 4.0*4.0*7.0 | 22.8 | 0 | AR/AR@1064&532nm | SHG@1064,TypeI |
| BBO002 | 4.0*4.0*7.0 | 47.6 | 0 | AR/AR@532&266nm | FHG@1064,TypeI |
| BBO003 | 4.0*4.0*10.0 | 22.8 | 0 | AR/AR@1064&532nm | SHG@1064,TypeI |
| BBO004 | 4.0*4.0*10 | 47.6 | 0 | AR/AR@532&266nm | FHG@1064,TypeI |
| BBO005 | 5.0*5.0*2.0 | 29.2 | 0 | AR/AR@800&400nm | SHG@800,TypeI |
| BBO006 | 5.0*5.0*1.0 | 29.2 | 0 | AR/AR@800&400nm | SHG@800,TypeI |
| BBO007 | 5.0*5.0*0.3-0.5 | 29.2 | 0 | AR/AR@800&400nm | SHG@800,TypeI |
| BBO008 | 5.0*5.0*0.1 | 29.2 | 0 | AR/AR@800&400nm | SHG@800,TypeI |