1 Micron Beam Expanders
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.
|Dimensions:||85mm long, 46mm maximum diameter|
| Focusing:||+/-3mm lens spacing from infinity position corresponding to approximately +/-1.5mm focusing distance respectively. Turning the focusing ring translates the lens without rotating it.|
|Output aperture:||30mm diameter (all magnifications).|
|Input aperture:||See the table below..|
|Fittings:||M30 x 1.0 thread on input for 4.7mm length, M43 x 0.5 thread on output for 5mm length.|
|Materials:||Lenses of Multi-Spectral ZnS, body from black anodised aluminium, brass, Delrin® and stainless steel|
THE YBE Beamexpander Range
|Part Number||Mag||Physical input Aperture ||Max. input beam dia. (approx.)|