Beam Expander

The beam expander can expand and split the beam of laser and monitoring light, and can expand and split the beam of multi-band laser. The function of fiber beam expander is to change the beam size and divergence angle. Transmission beam expander is usually an optical system composed of two or more optical elements. The function of the beam expander: first expand the beam and then focus it to get a smaller focus.

Features:

(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.