An ion-beam sputtered coating is applied to laser grade substrates to provide high reflection (>98%) and transmission (>95%) with low scattering. For optimal filter performance, when combining beams, the arrow on the side of the ring should point toward outgoing transmitted & combined laser beam. When separating beams, the arrow on the side of the ring should point toward incoming combined beam and outgoing reflected beam.

Co2laser beam combiner

The DCM11 Dichroic Laser Beam Combiner is a 0.98 inch (25.0 mm) diameter long pass edge filter with high reflection (> 98%) at 439-458 nm, and high transmission (> 95%) at 473-647 nm to efficiently combine or separate multiple laser beams at 45° angle of incidence. Made from low autofluoresence substrate with dense ultra-durable coatings, it is an ideal choice for applications involving multi-laser Fluorescence Microscopy, combining or splitting two beams of different wavelengths, spectral components filtering, and any laser applications requires minimal wavefront distortion. These Beam Combiners are sometimes called Harmonic beamsplitters or Dichroic Filters.

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Laser beam combinerkit

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The people at LightMachinery are veterans of the laser and optics world with many years of experience in the areas of optical design, high power lasers, optical fabrication, laser systems, metrology, thin film coatings and custom machinery fabrication. Feel free to send us a message at and tap into our wealth of experience, we try to respond to any inquiry in less than 24 hours.