Lateral Displacement Beamsplitter, Rhomboid Prism And Right Angle Prism Cemented
Overview: Lateral Displacement Beamsplitters are cemented by a right angle prism and a rhomboid prism. The beamsplitter outputs two parallel beams separated by a distance that depending on the size of Rhomboid prism. The high tolerance design ensures the exiting beams are parallel to within 2 arcmin. The cemented surface is coated with beamsplitter coating to achieve a wide variety of beam splitting ratio such as 50:50 over a certain wavelength range. The entrance and exit faces feature a multi-layer anti-reflection (AR) coating for increased efficiency and reduce the refection of the surface. General Specifications of Lateral Displacement Beamsplitter: Dimension Tolerance | ±0.2mm | Surface Quality | 60/40 | Clear Aperture | >90% | Flatness | <λ/4@632.8nm | Beam Deviation | <3 arc minutes | Chamfer | Proteced<0.5mmx45° | Coating | Partial reflectance on cemented surfaces AR coating on all entrances | T/R Tolerance | ±5%, T=(Ts+Tp)/2, R=(Rs+Rp)/2 | Damage Threshold | >500mJ/cm2, 20ns, 20Hz, @1064nm |
 Standard Products of Lateral Displacement Beamsplitter: PN. | Material | Dimension A (mm) | T/R (%) | Wavelength (nm) | Polarization | LDB12-T50-400-700 | N-BK7 | 12.7 | 50/50 | 400-700 | Avg. | LDB25-T50-400-700 | N-BK7 | 25.4 | 50/50 | 400-700 | Avg. | LDB12-T50-650-900 | N-BK7 | 12.7 | 50/50 | 650-900 | Avg. | LDB25-T50-650-900 | N-BK7 | 25.4 | 50/50 | 650-900 | Avg. | LDB12-T50-900-1200 | N-BK7 | 12.7 | 50/50 | 900-1200 | Avg. | LDB25-T50-900-1200 | N-BK7 | 25.4 | 50/50 | 900-1200 | Avg. |
Coating Graphs of Lateral Displacement Beamsplitter: 400-700nm 50:50 Lateral Displacement Beamsplitter 
| 650-900nm 50:50 Lateral Displacement Beamsplitter
 | 900-1200nm 50:50 Lateral Displacement Beamsplitter
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