18 Jun 2015 Introducing YBE beamexpanders. Designed for low power (500W) lasers such as Nd:YAG and Yb doped fi bre lasers operating near the 1µm wavelength. The beamexpanders are of Galilean 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). 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.
Technical Specifications
- Dimensions: 85mm long, 46mm maximum diameter
- Focusing: +/-3mm lens spacing from infi nity position corresponding to approximately +/-1.5m focusing distance respectively. Turning the focusing ring translates the lens without rotating it.
- Cooling: Air-cooled. Output aperture: 30mm diameter (all magnifi cations).
- 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
For a full list of specifications and input aperture data please click here or visit the ULO team at the Laser World of Photonics exhibition, Munich in Hall B2 Booth 120 |
