Introducing YBE beamexpanders. Designed for low power (500W) laser such as Nd:YAG and Yb doped fibre lasers operating near the 1μm wavelength.
The beamexpanders are of Galilean design and use Multi-spectral Zinc Sulphide for the optics which has an absorbption at 1μm of 0.0005cm−1 (similar to ZnSe at 10.6μm).
ZnS also has 20 times the thermal conductivity of Fused Silica and a higher refractive index. The refractive index allows a two element design to be used rather than three elements.
85mm long, 46mm maximum diameter
+/-3mm lens spacing from infinity position corresponding to approximately +/-1.5mm focusing distance respectively. Turning the focusing ring translates the lens without rotating it.
30mm diameter (all magnifications).
See the table below..
M30 x 1.0 thread on input for 4.7mm length, M43 x 0.5 thread on output for 5mm length.
Lenses of Multi-Spectral ZnS, body from black anodised aluminium, brass, Delrin®and stainless steel
THE YBE Beamexpander Range
Physical input Aperture
Max. input beam dia. (approx.)
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Beam Expanders for 1μm lasers
ULO Optics are excited to introduce our new range of beamexpanders. Designed for low power (500w) lasers such as Nd:YAG and Yb doped fibre lasers operating near the 1μm wavelength. The beamexpanders are of Galillean design and use Multi-spectral Zinc Sulphide for the optics which has an absorption at 1μm of 0.0005cm−1 (Similar to ZnSe at 10.6μm).
Designed to provide easy alignment and low maintenance, our mirror blocks are supplied pre-aligned to a 45º angle of incidence to within ±1 arc minute read more
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