Product

Product Description

There are 2 types of beam expander : Fixed and adjustable beam expanders. For the fixed beam expanders, the spacing between the two lenses inside the beam expander is fixed, but the spacing between the two lenses inside the adjustable beam expanders is adjustable.
The lens material is ZeSe, which allows the red light to go through the beam expander.
Carmanhaas could offer 3 types of beam expanders: Fixed Beam Expanders, Zoom Beam Expanders and Adjustable divergence angle beam expanders at various wavelengths of 355nm, 532nm, 1030-1090nm, 9.2-9.7um, 10.6um.
Other wavelengths and custom-designed beam expanders are available upon request. For more information, please feel free to contact us.

Product Advantage:

(1) High damage threshold coating (damage threshold: 40 J/cm2, 10 ns);
Coating absorption <20 ppm. Ensure that the scan lens can be saturated at 8KW;
(2) Optimized index design, collimation system wavefront < λ/10, ensuring diffraction limit;
(3) Optimized for heat dissipation and cooling structure, ensuring no water cooling below 1KW, temperature <50°C when using 6KW;
(4) With a non-thermal design, the focus drift is <0.5mm at 80 °C;
(5) Complete range of specifications, customers can be customized.

Technical Parameters:

Part number Description: BE-XXX-DYY : ZZZ-BB
BE ————- Beam Expanders
XXX ————-Laser wavelength: 10.6 means 10.6um, 10600nm, CO2
DYY : ZZZ ——-Beam Expander Output CA : Housing Length
BB —————Expansion ratio (magnification) in times

CO2 Beam Expanders (10.6um)

Product Operation and cleaning:

Great care should be taken when handling infrared optics. Please note the following precautions:
1. Always wear powder-free finger cots or rubber/latex gloves when handling optics. Dirt and oil from the skin can severely contaminate optics, causing a major degradation in performance.
2. Do not use any tools to manipulate optics — this includes tweezers or picks.
3. Always place optics on supplied lens tissue for protection.
4. Never place optics on a hard or rough surface. Infrared optics can be easily scratched.
5. Bare gold or bare copper should never be cleaned or touched.
6. All materials used for infrared optics are fragile, whether single crystal or polycrystalline, large or fine grained. They are not as strong as glass and will not withstand procedures normally used on glass optics.