China 45° Beam Combiner for CO₂ & Fiber Lasers – ZnSe for 10.6μm, BK7/Fused Silica for 355nm–1064nm, Visible Alignment Beam (650nm/532nm) Manufacture and Factory

45° Beam Combiner for CO₂ & Fiber Lasers – ZnSe for 10.6μm, BK7/Fused Silica for 355nm–1064nm, Visible Alignment Beam (650nm/532nm)

To facilitate safe and precise alignment of high‑power infrared lasers in industrial processes, our BC Series (BK7/fused silica) and BCZ Series (ZnSe) offer dichroic combiners that operate at 45° incidence. They transmit the working laser—for example, 1064 nm fiber, 10.6 μm CO₂, 532 nm green, or 355 nm UV—while reflecting a visible pointing beam (650 nm red or 532 nm green) at a right angle. The two beams then share a common optical axis, enabling operators to visually guide the invisible IR beam. This makes them indispensable for laser cutting, welding, and marking setups where coaxial visibility is required.

Common Specifications:

Angle of incidence (AOI): 45°
Surface flatness: λ/4 per 1″ diameter @632.8nm
Surface quality: 40‑20 scratch/dig
Diameter tolerance: +0/-0.13mm
Thickness tolerance: ±0.25mm
Available diameters: 12.7mm to 50.8mm (custom sizes upon request)

Material: BK7/Fused Silica/ZnSe

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Beam Combiner

These beam combiners, made of BK7 (H‑K9L) or fused silica, merge two incoming beams (UV, visible, or near‑IR) into a single output. By allowing users to overlay visible light with invisible laser radiation, they greatly simplify the alignment process.

ZnSe Beam Combiner is used for CO₂ laser system alignment. Designed at 45° angle of incidence, it transmits CO₂ laser beam and combines the beam with the 90° reflected visible alignment beam.