| Coad | 667039 | Type | Plane Dichroic Mirror | |
| Dimension(mm) | 38.1 x 6.35 | AOI(°) | 45 | |
| Diameter | 38.1mm +0/-0.1mm | Thickness | 6.35mm +0/-0.1mm | |
| HR Wavelength (nm) | 1535 | HT Wavelength (nm) | 2940 | |
| Substrate | Optical Grade Sapphire | Clear Aperture | ≥31mm | |
| Parallelism | <3 arcmin | Protective Chamfer | 0.4mm x 45° | |
| Surface Quality S1 | 40-20 S-D per CA | Surface Quality S2 | 40-20 S-D per CA | |
| Surface Flatness | - | Coating Type | IBS | |
| Reflectivity | >99% | Transmittance | >90% | |
| Coating Parameter S1 | HRa>99%@1535nm+HTa>90%(besteffort>95%)@2940nm | Coating Parameter S2 | Uncoated |














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%High praise
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