North Optics's Polarization Beam Combiner is composed of a half-waveplate or sometimes a dual-wavelength waveplate, and a polarization beam splitter (PBS) cube to either converge two perpendicular polarizations into one fiber or separate fiber light into two perpendicular polarizations. Our polarization beam combiners are non-fiber-based, and instead, we utilize polarization beamsplitter cubes and waveplates, where the PBS cubes operate to divide the orthogonal polarizations and the waveplates function as phase retarders.

Shanghai North Optics offers custom Beam Combiners for output power scaling of fiber lasers and various lasers. Our beam combiners consist of an N-BK7/Fused Silica Polarization Beam Splitter Cube and a Quartz/MgF2 Waveplate. Our polarization beam combiners feature a high damage threshold compatible with high power applications, tight tolerance control, and excellent transmission that guarantees optimized working efficiencies for your laser system. We provide a copious selection of dimensions and coatings, the side lengths encompassing 0.8mm, 1mm, 3mm, 5mm, 10mm, 20mm, 30mm, etc., and the coating options are also sufficing, including AR coatings, beamsplitter coatings, Au AR coatings, Ag AR coatings, Al AR coatings, other specifications such as surface flatness and beam deviation angle could all be tailored according to your demand.