Mirrors
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°.