BJP can repolish and coat most laser gain crystals, including:
1. Nd:YAG
2. Cr⁴⁺:YAG
3. Er:YAG
4. Yb:YAG
5. Nd:Ce:YAG
Services include core drilling, cutting, centerless grinding, polishing and coating. BJP can provide convex or concave radii on rod ends, as well as wedged ends or tilted ends. Slab repolishing is also available.
Most of the anti-reflection, high reflector, partial reflector or dichroic coatings can
be applied to laser rods. We can also produce a wide range of custom coatings.
Standard anti-reflection coatings for the most popular laser crystals have the foll-
owing reflectance specifications:
Standard refurbishing specifications:
| Parallism | ≤10 arc seconds |
| Perpendicularity | ≤5 arc minutes |
| Surface Quality | 10/5 Scratch / Dige MIL-O-13830A |
| Suface flatness | < λ/10 @ 632.8 nm |
| Dimensional tolerances | Diameter: +0/-0.05mm Length: ±0.5mm Chamfer : <0.1 mm @ 45º |
| Clear Aperture | Central 95% |
| AR-Coating Reflectivity | ≤ 0.15% (@1064nm |
BJP can supply refurbishing services beyond those detailed here. Please contact our engineers for assistance with your custom requirement.
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