Beam expanders

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Product Catalog 2016


Laser optics direct from stock. All products are inspected at metrology laboratory, certified and delivered worldwide direct from European Union.

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Variable Laser Beam Expanders

Variable Laser Beam Expanders
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Lens material UVFS
Transmitted wavefront distortion λ/4 p-v @ 632 nm
Overall transmission 97 %
Laser induced damage threshold >5 J/cm2 10 Hz, 10 ns, 1064 nm
Mounting thread M27x1
Housing material black anodized aluminium
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Attention! You can customise this product to your needs.
Tunable beam expander is Galilean type telescope, which allows compact design which is reasonable for industrial environment. Employed lenses are air spaced, thus expanders are suitable for high power applications. Altechna offers three different type beam expanders, each type is designed for specific application: 
  • For Nd:YAG lasers 
  • For Femtosecond lasers 
  • For two wavelengths (e.g. High power beam + guiding beam, or fundamental + harmonic).
Standard beam expanders are designed for four most popular lasers: Nd:YAG; Ti:Sapphire; Yb:KGW and Yb:YAG, but custom wavelengths are available. Standard mounting thread is M27x1, which is compatible with common 4-axis mounts. Models with 1.5x-5x and 1x-8x magnification distinguish by their “fixed-length” design which simplifies both integration and usage.

varna Expansion ratios 1.5x-5x; 5x-8x; 2x-8x
varna High laser induced damage threshold
varna Transmission better than 97% even for two wavelengths
varna Fixed-length design option

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