Mirrors

Download Optics for Nd: YAG Lasers Datasheet (PDF, 172 KB)

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:

K8 dichroic mirror (hot mirror), R=95.0%+/-4% @ 900-1100 nm, T >= 90% @ 808 nm

Fig. 1 K8 dichroic mirror (hot mirror), R=95.0%+/-4% @ 970-1100 nm, T >= 90% @ 808 nm.

UV Fused Silica laser mirror, R >= 99.5% @ 266 nm, AOI=45°, S-polarization

Fig. 2 UV Fused Silica laser mirror, R >= 99.5% @ 266 nm, AOI=45°, S-polarization.

K8 end cavity mirror, R >= 99.5% @ 1064 nm, AOI=45°

Fig. 3 K8 end cavity mirror, R >= 99.5% @ 1064 nm, AOI=45°.

K8 dichroic mirror, AR (R >= 0.5%) @ 266 nm/R>=99.5% @ 280-308 nm, T >= 90% @ 266 nm, AOI=0°

Fig. 4 K8 dichroic mirror, AR (R <= 0.5%) @ 266 nm, R>=90% @ 280-308 nm, T >= 90% @ 266 nm, AOI=0°.

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