Tydex offers the mirrors used as high reflectors (including in-cavity laser mirrors), dichroic (including hot/cold) mirrors or partial reflecting output couplers. Parts of round, square, rectangular, and elliptical shapes are offered.
Specification:
| Substrate material: |
KU-1, K8 |
| Surface figure @ 633nm: |
l/10 |
| Surface quality, scr/dig: |
20/10 |
| Clear aperture: |
exceeds central 85% of dimension |
| Dimensional tolerance, mm: |
+0/–0.25 |
| Thickness tolerance, mm: |
±0.25 |
| Wedge, arc.min |
<=5 |
| Edge thickness variation, mm: |
<= 0.05 |
| Coating: |
dielectric, metal-dielectric, metallic; user specified |
| Damage threshold, J/cm2: |
2-5, depending on coating spec. |
|
| No. |
Diameter, mm |
Thickness, mm |
| 1 |
12.7 |
3.175 |
| 2 |
12.7 |
6.35 |
| 3 |
19.05 |
9.525 |
| 4 |
25.4 |
6.35 |
| 5 |
25.4 |
9.525 |
| 6 |
38.1 |
6.35 |
| 7 |
38.1 |
9.525 |
|
Here are some examples of the mirror coatings:
Fig. 1 K8 dichroic mirror (hot mirror), R=95.0%+/-4% @ 970-1100 nm, T >= 90% @ 808 nm.
Fig. 2 UV Fused Silica laser mirror, R >= 99.5% @ 266 nm, AOI=45°, S-polarization.
Fig. 3 K8 end cavity mirror, R >= 99.5% @ 1064 nm, AOI=45°.
Fig. 4 K8 dichroic mirror, AR (R <= 0.5%) @ 266 nm, R>=90% @ 280-308 nm,
T >= 90% @ 266 nm, AOI=0°.
