 |
Wavelength |
1.535 micron
|
Yb concentration
by weight |
15% (up to 30% upon request) |
Er concentration
by weight |
0.05% (up to 1.5% upon request) |
| Parallelism |
20 arc seconds |
| Perpendicularity |
5 arc minutes |
| Scratch - dig |
20 - 10 (10 - 5 upon request) |
Flatness
of plane surface |
Lambda/10 at l=0.63 micron |
Homogeneity
of refractive index |
± 1x 10-5 |
| Reflectivity of AR coatings upon request |
Less than 0.25%
at 1.535 micron |
Damage threshold
of AR coatings |
1 GW/cm2 |
