| Standard Specifications of Nd:YAG |
| Host: |
Yttrium Aluminum Garnet （Y3A5O12） |
| Dopant: |
Erbium （Er3+） |
| Dopant Concentration: |
50 Atomic % |
| Thermal expansion coefficient: |
7.8x10-6/℃ |
| Orientation: |
[111] crystallographic directions (± 5°) |
| Wavefront Distortion: |
l/2 wave per inch of length, as measured in a doublepass interferometer at 1mm |
| Dimension Tolerances: |
Rods with diameter: ±0.025 mm, Length: ±0.5 mm
Barrel Finish: 50 80 micro-inch (RMS) , grooved rod barrel are also available |
| Ends Finish: |
Surface Figure: <l/10 @ 633 nm
Parallelism: < 10 arc seconds
Perpendicularity : < 2 arc minutes
Surface quality: < 5 arc minutes
Clear Aperture: > 10/5 Scratch / Dig per MIL-O-1380A
Chamfer: <0.1mm @ 45°
Clear Aperture: extend over the entire faces to the chamfered edges |
| Anti-Reflection End Coatings: |
less than 0.25% at 2.94μm |
