Lenses

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

Lenses for Nd:YAG lasersLenses are widely used at YAG-laser apparatuses for welding, cutting, drilling, and marking as well as in based on YAG-laser other applications like collimators, magnifiers, radiometers, optical transceivers, and condensers.

Tydex offers plano-convex, plano-concave, bi-convex, bi-concave, and meniscus lenses of spherical design. Cylindrical and custom-made lenses are also available.

Specification:

Substrate material: KU-1, K8
Surface figure (irregularity) @ 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
Edge thickness variation, mm: <= 0.05
Effective focal length (EFL) tolerance, %: ± 2
Antireflection coating: dielectric; user specified, R<=0.25% per surface (R<=0.1% is also possible on request)
Damage threshold, J/cm2: 2-5, depending on coating spec.

 

No. Diameter, mm EFL, mm Central thickness, mm
1 4 6 2.1
2 5 10 3.9
3 10 25 4
4 12.7 50 2
5 25.4 50 5.3
6 25.4 100 4
7 38.1 100 6

Here are some examples of the lens coatings:

UV Fused Silica plano-convex lens, AR (R <= 0.25%) @ 532nm

Fig. 1. UV Fused Silica plano-convex lens, AR (R <= 0.25%) @ 532nm.

 UV Fused Silica plano-convex lens, AR/AR (R <= 0.25%) @ 532nm & 1064nm

Fig. 2 UV Fused Silica plano-convex lens, AR/AR (R <= 0.25%) @ 532nm & 1064nm.
 
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HRFZ-Si Axicons
A new product among TYDEX THz lenses!

An axicon is a specialized type of lens which has a conical surface. It is used to transform a Gaussian beam into a Bessel beam.